The 2010 Oklahoma gubernatorial election was held on November 2, 2010, to elect the Governor of Oklahoma. Due to term limits established by the Oklahoma Constitution, incumbent Democratic Governor Brad Henry could not seek re-election. The race had been hotly contested by both political parties, with several well-known Oklahomans announcing their candidacy up to two years before the election. This was the first time a woman challenged another woman for Governor of Oklahoma. On November 2, 2010, Republican candidate Mary Fallin was elected in a landslide, defeating Democratic candidate Jari Askins.