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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.

Updated Jul. 13, 2017 10:19AM EDT / Published Jan. 04, 2012 2:00AM EST