 Landrieu's increased vulnerability was supposed to be the result of a significant drop in the state's African-American population after Hurricane Katrina, especially in Landrieu's home city of New Orleans.Louisiana also elected a Republican senator in 2004 and President Bush carried the state twice, in 2004 with 58 percent of the vote.Also, Republican Congressman Bobby Jindal won the 2007 gubernatorial election with 54 percent of the vote.