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UNITED STATES - August 17: Republican presidential candidate Sen. Lindsey Graham, R-S.C., looks back as he oversees the pork chops at the Iowa Pork Producers Association site at the Iowa State Fair in Des Moines, Iowa, Monday, August 17, 2015. (Photo By Al Drago/CQ Roll Call)

UNITED STATES - August 17: Republican presidential candidate Sen. Lindsey Graham, R-S.C., looks back as he oversees the pork chops at the Iowa Pork Producers Association site at the Iowa State Fair in Des Moines, Iowa, Monday, August 17, 2015. (Photo By Al Drago/CQ Roll Call)

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