In this Monday, Oct. 25, 2010 photo, U.S. Sen. Tom Harkin, D-Iowa, speaks to reporters following a rally in support of three Iowa Supreme Court justices who are up for retention votes in the November election, in Des Moines, Iowa. Harkin says he will not seek re-election in 2014, The Associated Press reports Saturday, Jan. 26, 2013. (AP Photo/Charlie Neibergall)