Like most U.S. states, North Carolina is politically dominated by the Democratic and Republican political parties. North Carolina has 13 seats in the U.S. House of Representatives and two seats in the U.S. Senate. North Carolina has voted for the Republican candidate in nine of the last 10 presidential elections; the one exception was in 2008, when a plurality of North Carolinians voted for Barack Obama. Conversely, North Carolina has mostly elected Democratic governors in its history; only four Republican governors have been elected since Reconstruction, and of those only one served two terms.