A Photo Gallery of GOP Candidates Campaigning for the Iowa Caucuses

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See highlights from the GOP's first contest of the election season.

Khue Bui for Newsweek

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Mitt Romney and wife, Ann, address with caucus night supporters at the Hotel Fort Des Moines Tuesday, January 3, 2012.

Khue Bui for Newsweek

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Rick Santorum and his wife Karen Garver Santorum celebrate at his Iowa Caucus night rally in Johnston, Iowa.

John Gress / Reuters-Landov

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Supporters of Republican presidential hopeful and former U.S. Sen. Rick Santorum hold up signs while waiting at the Stoney Creek Inn for the arrival of Santorum.

Andrew Burton / Getty Images

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Romney supporters watch the extremely close returns at the candidate's caucus night gathering in Des Moines.

Khue Bui for Newsweek

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Supporters of Mitt Romney at his caucus night gathering in Des Moines, IA.

Khue Bui for Newsweek

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Workers set up the site for Mitt Romney's Caucus night gathering at the Hotel Fort Des Moines Jan. 3, 2012.

Khue Bui for Newsweek

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A supporter looks through speaker supports as Mitt Romney shakes hands at the Mississippi Valley Fairgrounds in Davenport, IA.

Khue Bui for Newsweek

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Rick Santorum talks with the press in Newton, IA.

Khue Bui for Newsweek

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Mitt Romney poses for photos after a rally in Davenport, IA.

Khue Bui for Newsweek

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Ann Romney, wife of Mitt Romney, conducts a live shot on Fox News at the Mississippi Valley Fairgrounds in Davenport, IA.

Khue Bui for Newsweek

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Former Rick Santorum and wife, Karen, meet at the Pizza Ranch in Altoona, IA.

Khue Bui for Newsweek

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Rick Santorum and wife, Karen, meet with supporters at the Pizza Ranch.

Khue Bui for Newsweek

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A PETA supporter protests before Rick Santorum meets with supporters at the Pizza Ranch in Newton. PETA departed and did not interrupt the event.

Khue Bui for Newsweek

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MSNBC's Joe Scarborough listens as Rick Santorum speaks at the Pizza Ranch.

Khue Bui for Newsweek

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Members of the Duggar Family listen to Rick Santorum in Newton, IA.

Khue Bui for Newsweek

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Mitt Romney holds a rally at the Mississippi Valley Fairgrounds in Davenport, IA.

Khue Bui for Newsweek

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Mitt Romney conducts a TV interview under the watchful eye of his security in Davenport, IA.

Khue Bui for Newsweek

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A Romney supporter holds the candidate's book close to his heart in Clive, IA.

Khue Bui for Newsweek

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Rick Santorum takes a call in Newton, IA.

Khue Bui for Newsweek

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Signs and shadows in the snow in Atlantic, IA.

Khue Bui for Newsweek

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Journalists await the arrival of Mitt Romney at the Family Table Restaurant in Atlantic, IA.

Khue Bui for Newsweek

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Rick Santorum takes in the Pinstripe Bowl game at the Buffalo Wild Wings in Ames.

Khue Bui for Newsweek

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Mitt Romney, wife Ann and son Craig, meet and greet with voters at the Family Table Restaurant.

Khue Bui for Newsweek

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Rick Perry shakes hands in Boone, IA.

Khue Bui for Newsweek

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Rick Perry attends a meet and greet in front of the American flag in Boone, IA.

Khue Bui for Newsweek

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There were two types of people at a West Des Moines grocery store on Friday December 30: shoppers and rally goers.

Khue Bui for Newsweek

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Jim Wilson, from Buckingham, Va., lights his pipe near a decked-out Romney-mobile in Ames.

Khue Bui for Newsweek

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Rick Perry supporters, including the notorious sheriff of Maricopa County in Arizona, Joe Arpaio, gather at the Smokey Row Coffee Shop in Pella.

Khue Bui for Newsweek

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Perry sure is making the rounds in Iowa. Pictured, he signs his autograph for a voter at the Sports Page restaurant in Indianola.

Khue Bui for Newsweek

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David’s Milwaukee Diner really rolled out the red carpet for the local guest of honor on Thursday. Ron Paul was in Perry for a town hall meeting at the Hotel Pattee.

Khue Bui for Newsweek

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Ron Paul greets supporters after a Salute to Veterans Rally at the Iowa State Fairgrounds Wednesday.

Khue Bui for Newsweek

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A behind-the-camera view of Ron Paul’s town hall meeting in Perry.

Khue Bui for Newsweek

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Rick Perry is excited to get this meet-and-greet started as he pulls up to the Sports Page restaurant in Indianola.

Khue Bui for Newsweek

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It wouldn’t be a rally without some ‘Occupy’ protesters. Ron Paul’s Salute to Veterans Rally was disrupted when some angry occupiers showed up at the Iowa State Fairgrounds.

Khue Bui for Newsweek

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His raised thumb says ‘it’s all good’ but we note a hint of fear in Mitt Romney’s face as he climbs into his tour bus following a rally in Ames.

Khue Bui for Newsweek

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The Makohoniuk Family of Waukee, Iowa poses for a picture outside the West Des Moines grocery store where they were shopping while Mitt Romney was holding a rally.

Khue Bui for Newsweek

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A Ron Paul supporter listens to the Texas congressman give a salute to veterans.

Khue Bui for Newsweek

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Mitt Romney lets his guard down and greets a supporter with a big bear hug at his rally in Ames.

Khue Bui for Newsweek

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Scott Yochum and his mother, Marcella, are just two of the many people weathering the Iowa winter cold in hopes of seeing Mitt and Ann Romney and New Jersey Gov. Chris Christie at a rally in Des Moines Friday.

Khue Bui for Newsweek

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Mitt steps out in front of a crowd of voters at his Thursday rally in Ames.

Khue Bui for Newsweek

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The Romney-mobile flies its Iowa and American flags high behind shopping carts-turned-barriers at a West Des Moines rally featuring the former Massachusetts governor, his wife and New Jersey Gov. Chris Christie.

Khue Bui for Newsweek

A Photo Gallery of GOP Candidates Campaigning for the Iowa Caucuses

In the final days leading up to Tuesday’s GOP caucus kick off, photographer Khue Bui captured the candidates shaking hands, signing autographs, attending rallies and doing whatever it takes to make contact with Iowa voters.