In part 2 of the interview with Rigamer, we discussed some of the turnout numbers that made a difference in the election.
Here is a short summary:
Vitter wasn't enough to overcome the support from the massive African-American community and the white (other parties and other race voters). Edwards had a significant number of voters who did not go back and vote for Vitter.
The support for John Bell Edwards was probably between 35 and 40% in the white community, closer to 40% of all white voters, so clearly many white voters move on from Jay Dardenne and Scott Angelle but not all of them
By comparison, in the election between Mary Landrieu vs. Bill Cassidy, Landrieu received between 18-20% of the white vote so the movement of the "white other parties, other race voters made up up the 35 to 38%
"Turnout overall was lower than the Landrieu-Cassidy race; the 2014 base, the turnout was about 50%, was about 39 1/2% on Saturday, what was noteworthy on Saturday is that African-Americans cast about 29% of the vote and that is really very good. White voters and other race voters turned out about 41%, African-American voters turned out about 37%, so there was only about a four point differential and that's a significant improvement over a typical race. Normally, other than in presidential, you see about an 8 to 10% turnout differential, so the degree of turnout doesn't matter as much as the composition of the turnout.
Edwards had an exceedingly well turnout in the African-American community and broad support in the white community, not a majority but well enough
If you want a terrific breakdown of the election by the numbers, watch the video above. Also, here is part one of the interview with Rigamer.