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On December 14, 2015, Terry Branstad surpassed George Clinton's record as the longest-serving governor in American history. Branstad, a Republican, served as the Governor of Iowa for a total of 22 years, from 1983 to 1999 and again from 2011 to 2017. Clinton, a Democrat, served as the Governor of New York for 21 years, from 1975 to 1995.