Edwards took less than 40% of the vote in 2015 while three Republican candidates split 57%. Yet Edwards won the runoff 56% to 44%. This isn’t over, not by a long shot.
David Vitter had his "D.C. Madam" problem. While that might be considered a "plus" if running for governor as a Democrat in New Jersey or Illinois, I doubt it's anything but a lethal blow to a Republican politician in Louisiana.
I agree that "It ain't over till it's over."