I wouldn’t be surprised if this was at the behest of Jindal. Jindal has despised Vitter and even refused to endorse him in his 2010 senate reelection.
Not a big fan of Vitter— but go Vitter.
Jindal is a conservative, he doesn’t back democrats, especially scumbag democrats like dem floor leader Edwards who’s job #1 has been to disrupt Jindal’s agenda. Dardenne is a longtime well known RINO.