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.
Actress Park Overall said she's always had an interest in politics so she's mounting a bid to be the Democrat who takes the longshot chance at unseating Republican U.S. Sen. Bob Corker. Overall starred in the popular television series "Empty Nest" in the late 1980s and early 1990s.