Mississippi has four seats in the House, apportioned according to the 2000 United States Census. Representatives are elected for two-year terms; those elected will serve in the 112th Congress from January 3, 2011 until January 3, 2013.
The Mississippi congressional delegation for the 111th Congress consists of three Democrats and one Republican. The Mississippi congressional delegation for the 112th Congress consisted of three Republicans and one Democrat.
Seeking a third term in this heavily conservative district based in northern Mississippi, Democratic Congressman Travis Childers faced a tough challenge from State SenatorAlan Nunnelee. Though Childers had been lucky enough to win a special election and a general election in 2008, he was seen as vulnerable in a strongly anti-Democratic environment despite his conservative profile. Both national parties spent heavily in this district, and polling indicated that Nunnelee would defeat Childers. On election day, Nunnelee ousted Congressman Childers by a fifteen point margin to win his first term in Congress.
Coming off from a resounding re-election in 2008, incumbent Democratic Congressman Bennie Thompson, who has represented this liberal, western Mississippi district since the resignation of previous Congressman Mike Espy faced Republican Bill Marcy and Reform Party candidate Ashley Norwood in the general election. Though Thompson was not perceived as vulnerable and though he was re-elected comfortably, it was by a smaller margin than in past years.
This district, which runs diagonally from the border with Louisiana in southern Mississippi to the border with Alabama in east-central Mississippi, has a strongly conservative profile. Incumbent Republican Congressman Gregg Harper, first elected in 2008, faced a rematch from his previous challenger, Joel Gill, the Mayor of the small town of Pickens, which actually does not lie in the boundaries of the third district. Harper was never considered vulnerable and defeated Gill to win a second term.
Though incumbent Democratic Congressman Gene Taylor maintained strong popularity in this district, based in southern Mississippi on the Gulf Coast and the state’s most conservative district, he faced a serious challenge from State RepresentativeSteven Palazzo. Congressman Taylor strongly emphasized his conservative profile, even as a Democrat, going so far as to claim that he would vote against Nancy Pelosi for Speaker and that he voted for John McCain in 2008 rather than Barack Obama.  In the end, Palazzo defeated Taylor by 5 points.