Republican presidential candidate, former Arkansas Gov. Mike Huckabee, center, speaks to supporters during a fundraiser for U.S. Sen. Joni Ernst, R-Iowa, Saturday, June 6, 2015, in Boone, Iowa. (AP Photo/Charlie Neibergall)
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Republican presidential candidate, former Arkansas Gov. Mike Huckabee, center, speaks to supporters during a fundraiser for U.S. Sen. Joni Ernst, R-Iowa, Saturday, June 6, 2015, in Boone, Iowa. (AP Photo/Charlie Neibergall)
