Tennessee Sen. Bob Corker has fended off four challengers in a Republican primary to win his party's nomination for a second term. The former Chattanooga mayor faced a much easier time in his re-election bid than he did when he ran in 2006. Then he had a tough primary against two former congressmen and narrowly defeated former Democratic U.S. Rep. Harold Ford Jr. in an even-more bruising general election campaign.
Seven little-known Democrats were vying for the nomination to face Corker in the general election.
In the most recent financial disclosures, Corker had more than $6 million remaining, while no other challenger had more than $19,000.