U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

 Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign prepares for a television interview remotely on CNN in Des Moines, Iowa on January 18, 2016.

Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign prepares for a television interview remotely on CNN in Des Moines, Iowa on January 18, 2016.

 Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign, sits in on the radio show of Steve Deace, an evangelical conservative national syndicated radio host in Des Moines, Iowa on January 18, 2016.

Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign, sits in on the radio show of Steve Deace, an evangelical conservative national syndicated radio host in Des Moines, Iowa on January 18, 2016.

 Steve Deace, an evangelical conservative national syndicated radio host seen during his nightly radio show broadcast from facilities at the offices of The Family Leader in Des Moines, Iowa on January 18, 2016.

Steve Deace, an evangelical conservative national syndicated radio host seen during his nightly radio show broadcast from facilities at the offices of The Family Leader in Des Moines, Iowa on January 18, 2016.

 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Republican presidential candidate Donald Trump wait outside near a statue of John Wayne at the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Republican presidential candidate Donald Trump wait outside near a statue of John Wayne at the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump gives a thumbs up to the media outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump gives a thumbs up to the media outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 A supporter of U.S. Republican presidential candidate Donald Trump stays behind after meeting Trump outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

A supporter of U.S. Republican presidential candidate Donald Trump stays behind after meeting Trump outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump waves to the crowd as he takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump waves to the crowd as he takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 Protestors yell as they are escorted out from U.S. Republican presidential candidate Donald Trump's rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Protestors yell as they are escorted out from U.S. Republican presidential candidate Donald Trump's rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Republican presidential candidate Donald Trump listen as he speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Republican presidential candidate Donald Trump listen as he speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump (L) hugs Former Alaska Gov. Sarah Palin as she arrives to endorse Trump at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (L) hugs Former Alaska Gov. Sarah Palin as she arrives to endorse Trump at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump (R) as Former Alaska Gov. Sarah Palin endorses him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) as Former Alaska Gov. Sarah Palin endorses him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump (R) kisses Former Alaska Gov. Sarah Palin on the cheek after she endorsed him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) kisses Former Alaska Gov. Sarah Palin on the cheek after she endorsed him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Donald Trump (R) shakes Former Alaska Gov. Sarah Palin's hand after receiving her endorsement at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) shakes Former Alaska Gov. Sarah Palin's hand after receiving her endorsement at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

 An Iowa farmstead is seen from a passing car on Highway 141 outside of Aspinwall, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

An Iowa farmstead is seen from a passing car on Highway 141 outside of Aspinwall, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 A rural homestead along Highway 59 between Buck Grove and Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

A rural homestead along Highway 59 between Buck Grove and Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 Wedel Argotsinger, left, Sandy Bryan, and Jerry Bryan discuss U.S. Republican presidential candidates during the group's daily morning coffee at Cronk's Cafe in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

Wedel Argotsinger, left, Sandy Bryan, and Jerry Bryan discuss U.S. Republican presidential candidates during the group's daily morning coffee at Cronk's Cafe in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 Allan Preul, left, Sahl Argotsinger, and Wedel Argotsinger locals to Denison, Iowa, gather for coffee and to talk about the past day's events and national politics at Cronk's Cafe each morning, seen here on January 21, 2016. Mark Kauzlarich for Die Zeit

Allan Preul, left, Sahl Argotsinger, and Wedel Argotsinger locals to Denison, Iowa, gather for coffee and to talk about the past day's events and national politics at Cronk's Cafe each morning, seen here on January 21, 2016. Mark Kauzlarich for Die Zeit

 Dina Nimitz, 86, watches the door as she waits for customers at the counter of Cronk's Cafe in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

Dina Nimitz, 86, watches the door as she waits for customers at the counter of Cronk's Cafe in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

 Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, arrives for a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Introducing her to attendees is Rep. Steve King, a local U.S. Congressman who attended high school in Denison. Mark Kauzlarich for Die Zeit

Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, arrives for a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Introducing her to attendees is Rep. Steve King, a local U.S. Congressman who attended high school in Denison. Mark Kauzlarich for Die Zeit

 Rep. Steve King, left, points to Heidi Cruz, wife of U.S. Republican presidential candidate Sen. Ted Cruz, during a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

Rep. Steve King, left, points to Heidi Cruz, wife of U.S. Republican presidential candidate Sen. Ted Cruz, during a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

 Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, takes questions from CNN as she walks to her car after a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, takes questions from CNN as she walks to her car after a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

 A barn with a sign supporting U.S. Republican presidential candidate Ted Cruz sits in a snowy landscape outside of Arcadia, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

A barn with a sign supporting U.S. Republican presidential candidate Ted Cruz sits in a snowy landscape outside of Arcadia, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as he speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as he speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders hugs a supporter who introduced him at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders hugs a supporter who introduced him at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 An arrow taped to the floor points the way to the podium as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

An arrow taped to the floor points the way to the podium as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 An interpreter (R) works in sign language as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

An interpreter (R) works in sign language as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders gestures as he speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders gestures as he speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

 Violette Rose (L), a supporter of U.S. Democratic presidential candidate Bernie Sanders waits in line for a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Violette Rose (L), a supporter of U.S. Democratic presidential candidate Bernie Sanders waits in line for a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Nicole Cody holds her 3-month-old daughter Caroline as they wait in line for U.S. Democratic presidential candidate Bernie Sanders' town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Nicole Cody holds her 3-month-old daughter Caroline as they wait in line for U.S. Democratic presidential candidate Bernie Sanders' town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders enters the venue before speaking at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders enters the venue before speaking at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders and his wife Jane Sanders (L) leave Luther College after a town hall campaign event in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders and his wife Jane Sanders (L) leave Luther College after a town hall campaign event in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 The campaign bus for U.S. Democratic presidential candidate Bernie Sanders makes its way from a town hall at Luther College in Decorah, Iowa to an event in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

The campaign bus for U.S. Democratic presidential candidate Bernie Sanders makes its way from a town hall at Luther College in Decorah, Iowa to an event in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Elissa Wenthe (C) holds her 4-month-old son Cormac as she listens to U.S. Democratic presidential candidate Bernie Sanders speak at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Elissa Wenthe (C) holds her 4-month-old son Cormac as she listens to U.S. Democratic presidential candidate Bernie Sanders speak at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Michael Briggs, communications director for U.S. Democratic presidential candidate Bernie Sanders, watches as Sanders (not shown) greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Michael Briggs, communications director for U.S. Democratic presidential candidate Bernie Sanders, watches as Sanders (not shown) greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Lonnie McAllister (2R) and her grandson Vincent McAllister listen as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Lonnie McAllister (2R) and her grandson Vincent McAllister listen as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer during a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer during a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders waves to the crowd after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders waves to the crowd after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders (R) takes a selfie with supporters at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders (R) takes a selfie with supporters at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 A supporter of U.S. Democratic presidential candidate Bernie Sanders holds a sign as she listens at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

A supporter of U.S. Democratic presidential candidate Bernie Sanders holds a sign as she listens at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.
 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.
 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.
 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.
 U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.
 Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign prepares for a television interview remotely on CNN in Des Moines, Iowa on January 18, 2016.
 Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign, sits in on the radio show of Steve Deace, an evangelical conservative national syndicated radio host in Des Moines, Iowa on January 18, 2016.
 Steve Deace, an evangelical conservative national syndicated radio host seen during his nightly radio show broadcast from facilities at the offices of The Family Leader in Des Moines, Iowa on January 18, 2016.
 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Republican presidential candidate Donald Trump wait outside near a statue of John Wayne at the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump gives a thumbs up to the media outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 A supporter of U.S. Republican presidential candidate Donald Trump stays behind after meeting Trump outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump waves to the crowd as he takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 Protestors yell as they are escorted out from U.S. Republican presidential candidate Donald Trump's rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Republican presidential candidate Donald Trump listen as he speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump (L) hugs Former Alaska Gov. Sarah Palin as she arrives to endorse Trump at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump (R) as Former Alaska Gov. Sarah Palin endorses him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump (R) kisses Former Alaska Gov. Sarah Palin on the cheek after she endorsed him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 U.S. Republican presidential candidate Donald Trump (R) shakes Former Alaska Gov. Sarah Palin's hand after receiving her endorsement at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich
 An Iowa farmstead is seen from a passing car on Highway 141 outside of Aspinwall, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 A rural homestead along Highway 59 between Buck Grove and Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 Wedel Argotsinger, left, Sandy Bryan, and Jerry Bryan discuss U.S. Republican presidential candidates during the group's daily morning coffee at Cronk's Cafe in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 Allan Preul, left, Sahl Argotsinger, and Wedel Argotsinger locals to Denison, Iowa, gather for coffee and to talk about the past day's events and national politics at Cronk's Cafe each morning, seen here on January 21, 2016. Mark Kauzlarich for Die Zeit
 Dina Nimitz, 86, watches the door as she waits for customers at the counter of Cronk's Cafe in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit
 Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, arrives for a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Introducing her to attendees is Rep. Steve King, a local U.S. Congressman who attended high school in Denison. Mark Kauzlarich for Die Zeit
 Rep. Steve King, left, points to Heidi Cruz, wife of U.S. Republican presidential candidate Sen. Ted Cruz, during a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit
 Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, takes questions from CNN as she walks to her car after a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit
 A barn with a sign supporting U.S. Republican presidential candidate Ted Cruz sits in a snowy landscape outside of Arcadia, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit
 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as he speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders hugs a supporter who introduced him at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 An arrow taped to the floor points the way to the podium as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 An interpreter (R) works in sign language as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders gestures as he speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich
 Violette Rose (L), a supporter of U.S. Democratic presidential candidate Bernie Sanders waits in line for a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Nicole Cody holds her 3-month-old daughter Caroline as they wait in line for U.S. Democratic presidential candidate Bernie Sanders' town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders enters the venue before speaking at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders and his wife Jane Sanders (L) leave Luther College after a town hall campaign event in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 The campaign bus for U.S. Democratic presidential candidate Bernie Sanders makes its way from a town hall at Luther College in Decorah, Iowa to an event in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Elissa Wenthe (C) holds her 4-month-old son Cormac as she listens to U.S. Democratic presidential candidate Bernie Sanders speak at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Michael Briggs, communications director for U.S. Democratic presidential candidate Bernie Sanders, watches as Sanders (not shown) greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Lonnie McAllister (2R) and her grandson Vincent McAllister listen as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer during a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders waves to the crowd after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders (R) takes a selfie with supporters at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 A supporter of U.S. Democratic presidential candidate Bernie Sanders holds a sign as she listens at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich
 U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

U.S. Republican presidential candidate Rand Paul holds a campaign event at Platinum Kutz barbershop in Des Moines, IA January 18, 2016.

Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign prepares for a television interview remotely on CNN in Des Moines, Iowa on January 18, 2016.

Bob Vander Plaats, CEO of The Family Leader and National Co-Chair of U.S. Republican presidential candidate Ted Cruz' campaign, sits in on the radio show of Steve Deace, an evangelical conservative national syndicated radio host in Des Moines, Iowa on January 18, 2016.

Steve Deace, an evangelical conservative national syndicated radio host seen during his nightly radio show broadcast from facilities at the offices of The Family Leader in Des Moines, Iowa on January 18, 2016.

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a press conference at the John Wayne Birthplace and Museum in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Republican presidential candidate Donald Trump wait outside near a statue of John Wayne at the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump gives a thumbs up to the media outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump greets supporters outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

A supporter of U.S. Republican presidential candidate Donald Trump stays behind after meeting Trump outside the John Wayne Birthplace and Museum after a press conference in Winterset, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump waves to the crowd as he takes the stage at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Protestors yell as they are escorted out from U.S. Republican presidential candidate Donald Trump's rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Republican presidential candidate Donald Trump listen as he speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump speaks at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (L) hugs Former Alaska Gov. Sarah Palin as she arrives to endorse Trump at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

Former Alaska Gov. Sarah Palin (L) points to U.S. Republican presidential candidate Donald Trump (R) as she speaks after endorsing him for President at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) as Former Alaska Gov. Sarah Palin endorses him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) kisses Former Alaska Gov. Sarah Palin on the cheek after she endorsed him at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

U.S. Republican presidential candidate Donald Trump (R) shakes Former Alaska Gov. Sarah Palin's hand after receiving her endorsement at a rally at Iowa State University in Ames, Iowa January 19, 2016. REUTERS/Mark Kauzlarich

An Iowa farmstead is seen from a passing car on Highway 141 outside of Aspinwall, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

A rural homestead along Highway 59 between Buck Grove and Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

Wedel Argotsinger, left, Sandy Bryan, and Jerry Bryan discuss U.S. Republican presidential candidates during the group's daily morning coffee at Cronk's Cafe in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

Allan Preul, left, Sahl Argotsinger, and Wedel Argotsinger locals to Denison, Iowa, gather for coffee and to talk about the past day's events and national politics at Cronk's Cafe each morning, seen here on January 21, 2016. Mark Kauzlarich for Die Zeit

Dina Nimitz, 86, watches the door as she waits for customers at the counter of Cronk's Cafe in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, arrives for a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Introducing her to attendees is Rep. Steve King, a local U.S. Congressman who attended high school in Denison. Mark Kauzlarich for Die Zeit

Rep. Steve King, left, points to Heidi Cruz, wife of U.S. Republican presidential candidate Sen. Ted Cruz, during a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

Heidi Cruz, center, wife of U.S. Republican presidential candidate Sen. Ted Cruz, takes questions from CNN as she walks to her car after a campaign event at Cronk's Diner in Denison, Iowa January 21, 2016. Mark Kauzlarich for Die Zeit

A barn with a sign supporting U.S. Republican presidential candidate Ted Cruz sits in a snowy landscape outside of Arcadia, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

An American flag hangs from the porch of a home in Denison, Iowa on January 21, 2016. Mark Kauzlarich for Die Zeit

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as he speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks a town hall campaign event in Clinton, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders hugs a supporter who introduced him at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

An arrow taped to the floor points the way to the podium as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

An interpreter (R) works in sign language as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders gestures as he speaks at a town hall campaign event in Maquoketa, Iowa January 23, 2016. REUTERS/Mark Kauzlarich

Violette Rose (L), a supporter of U.S. Democratic presidential candidate Bernie Sanders waits in line for a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Nicole Cody holds her 3-month-old daughter Caroline as they wait in line for U.S. Democratic presidential candidate Bernie Sanders' town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders enters the venue before speaking at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer as speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall campaign event at Luther College in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders and his wife Jane Sanders (L) leave Luther College after a town hall campaign event in Decorah, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

The campaign bus for U.S. Democratic presidential candidate Bernie Sanders makes its way from a town hall at Luther College in Decorah, Iowa to an event in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders arrives at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Elissa Wenthe (C) holds her 4-month-old son Cormac as she listens to U.S. Democratic presidential candidate Bernie Sanders speak at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Michael Briggs, communications director for U.S. Democratic presidential candidate Bernie Sanders, watches as Sanders (not shown) greets supporters at a town hall at Upper Iowa University in Fayette, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Lonnie McAllister (2R) and her grandson Vincent McAllister listen as U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as he speaks speaks at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders cheer during a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders waves to the crowd after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders (R) takes a selfie with supporters at a town hall in Independence, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

Supporters of U.S. Democratic presidential candidate Bernie Sanders listen as Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

A supporter of U.S. Democratic presidential candidate Bernie Sanders holds a sign as she listens at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders speaks at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

U.S. Democratic presidential candidate Bernie Sanders greets supporters after speaking at a town hall at the University of Northern Iowa in Cedar Falls, Iowa January 24, 2016. REUTERS/Mark Kauzlarich

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