Democrat Barack Obama won the 2008 Democratic caucuses in Alaska by a margin of more than three to one over Hillary Clinton, a higher percentage than any state except Idaho. He then received 37.89 percent of the total statewide vote in the general election, losing the state to Republican John McCain, who had selected then-Alaska Governor Sarah Palin as his vice-presidential running mate. In the same election year, Democrat Mark Begich narrowly won election to the U.S. Senate over longtime Republican incumbent Ted Stevens. Begich lost re-election in 2014, the same year that Democratic-endorsed independent Bill Walker defeated incumbent Republican Sean Parnell for Governor.