Rep. Charles Boustany, R-La., an ally of the House Speaker, Saturday defeated Rep. Jeff Landry, R-La., the election year's final congressional race.
The two incumbents were forced into the same contest after Louisiana lost one House of Representatives seat after the 2010 census. Boustany is considered friendly to House Speaker John Boehner, while Landry is regarded as closer to the conservative Tea Party movement.
Boustany, who had 61 percent of the vote, was the favorite, since most of the new district included areas he had represented. He and Landry were forced into a runoff because, in the first election last month, no one got the required 50 percent in a multi-candidate field.
The race was contentious, and Associated Press reported about $6 million was spent between the two candidates, with Boustany having a big advantage. Outside groups also weighed in.
Democrats wound up with a net gain of eight seats in the next Congress.