The 2012 United States Senate election in Ohio took place on November 6, 2012, concurrently with the 2012 U.S. presidential election as well as other elections to the United States Senate and House of Representatives and various state and local elections. Incumbent Democratic U.S. Senator Sherrod Brown won re-election to a second term, defeating Republican Josh Mandel, the Ohio State Treasurer. Brown was unopposed in the Democratic primary while Mandel won the Republican primary with 63% of the vote.[2][3]