FILE - In this Feb. 10, 2011 file photo, Rep. Steve King, R-Iowa speaks in Washington. Republican-leaning areas in states vital to President Barack Obama's re-election prospects are drawing top-tier Democratic congressional candidates who, even if they lose, could help turn out the vote and boost Obama's chances of winning a second term. The best example of the trend is former Iowa first lady Christie Vilsack, challenging GOP Rep. Steve King in Iowa's 4th Congressional District. (AP Photo/Alex Brandon, File)