Iowa State University College of Agriculture and Life Sciences students Liz Hada, left, and Melissa Garcia Rodriguez say they have experienced racial tension in some of their classes, despite feeling generally welcomed by most students and faculty. Amy Mayer/Harvest Public Media hide caption

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Amy Mayer/Harvest Public Media

Hundreds of demonstrators on the Iowa Capitol's Rotunda floor protest a bill that would restrict collective bargaining for local and state government workers. John Pemble/Iowa Public Radio hide caption

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John Pemble/Iowa Public Radio

Iowa Moves To Restrict Collective Bargaining For Public Sector Workers

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Protesters opposing the proposed Dakota Access Pipeline at the Oceti Sakowin Camp in North Dakota. Lawmakers in the state have proposed bills that would increase penalties for protesters who block highways. Michael Nigro/Getty Images hide caption

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Michael Nigro/Getty Images

Bills Across The Country Could Increase Penalties For Protesters

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Crews clean up the diesel fuel spill after a pipeline broke in Worth County, Iowa on Wednesday. Chris Zoeller/Mason City Globe Gazette/globegazette.com hide caption

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Iowa Gov. Terry Branstad greets Chinese President Xi Jinping before a meeting at the Great Hall of the People in Beijing in April 2013. The two first met in 1985, during a visit by Xi to Iowa. Andy Wong/AP hide caption

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Andy Wong/AP

An 'Old Friend Of China' Prepares To Bridge Differences At A Fraught Time

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Iowa Gov. Terry Branstad has been named as the next U.S. Ambassador to China. He's pictured here delivering his annual Condition of the State address before a joint session of the Iowa Legislature, in January. Charlie Neibergall/AP hide caption

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Charlie Neibergall/AP

Former first lady Barbara Bush, mother of Republican presidential candidate Jeb Bush, campaigns with her son at a town hall meeting at West Running Brook Middle School in Derry, N.H. Jacquelyn Martin/AP hide caption

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Florida Sen. Marco Rubio may have finished third, but he had a better-than-expected night in Iowa, thanks in part to larger turnout and evangelical voters. Pete Marovich/Getty Images hide caption

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Jerry Dunleavy stands inside his dorm room at "Camp Cruz," on the campus of AIB College of Business in Des Moines. Dunleavy, from Cleveland, quit his job and went to Iowa, leaving everything behind, to campaign for Ted Cruz. Clay Masters/Iowa Public Radio hide caption

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Clay Masters/Iowa Public Radio

'Camp Cruz': The Surplus Iowa Dorm Filled With Cruz Volunteers

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Former Pennsylvania Sen. Rick Santorum campaigning in Des Moines, Iowa. Andrew Harnik/AP hide caption

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Andrew Harnik/AP

Santorum Struggles To Regain 2012 Momentum

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Gas stations across Iowa, like this Casey's General Store in Des Moines, boast ethanol as "cleaner air for Iowa." Clay Masters/Iowa Public Radio hide caption

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Clay Masters/Iowa Public Radio

Got Corn? Ethanol Is No Longer King In Iowa Among Candidates

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Wisconsin Gov. Scott Walker speaks at a news conference Monday in Madison, Wis., where he announced that he is suspending his Republican presidential campaign. Morry Gash/AP hide caption

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Ex-Iowa State Sen. Kent Sorenson defected from Michele Bachmann's campaign before the 2012 Iowa caucuses. In a 2014 plea deal, he admitted that he lied about payments from the Ron Paul campaign. Charles Dharapak/AP hide caption

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Charles Dharapak/AP

Big Money And Backstabbing Have Become Part Of The Iowa Game

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