It has been a brutal and pricey contest. In a much-publicized television ad, Edwards referenced Vitter’s involvement in the 2007 “D.C. Madam” scandal, alleging that Vitter chose “prostitutes over patriots.”

Vitter, a staunch conservative who served in the House for two terms before being elected to the Senate in 2004, aired a pair of ads in response that alluded to his quest for moral redemption after the scandal. One spot featured an endorsement by “Duck Dynasty” star Willie Robertson, who says of Vitter “I know he’s made some mistakes, but who hasn’t?”

Edwards has also benefitted from GOP infighting. After Vitter barely squeaked out a victory in the GOP primary, one of his fellow Republican candidates, Lt. Gov Jay Dardenne, crossed the aisle to back Edwards over his own party’s pick. Vitter also failed to secure endorsements from another GOP primary candidate, Scott Angelle, and sitting governor Jindal.

Jindal, who dropped out of the 2016 presidential race on Tuesday and has been plagued by low approval ratings at home, told reporters this week that he would not disclose who he’s supporting in the race.

“We’re not going to endorse or get involved in the governor’s race. I trust the people of Louisiana,” Jindal said.