Democrat John Bel Edwards plans to make a “major campaign announcement” in his bid for governor Thursday morning.

He hasn’t revealed the specific content of his news conference, set for 9 a.m. at LSU’s “Free Speech Alley” but both he and Republican David Vitter have spent the past week making major endorsement announcements. On Wednesday, Vitter announced that he has won the backing of former Republican Gov. Mike Foster.

Jay Dardenne and Scott Angelle — the two key Republicans who didn’t make it into the Nov. 21 runoff — have not yet endorsed either candidate, but Dardenne, in particular, has been said to be edging toward an endorsement in recent days.