Mitch Landrieu. He is the current Democratic lieutenant governor of Louisiana and brother of Sen. Mary Landrieu.
If Gov. Bobby Jindal joins McCain's ticket, all the progress he has made in the last few months won't be worth anything. The state will just be run by another Democrat hack from a legacy political family.
I think its best that we let Jindal incubate in Baton Rouge for a while, and have him run in 2012 or 2016. If McCain wants a reform-minded, non-boring, non-white guy governor on his ticket, he should go with Alaska Gov. Sarah Palin. She has all of Jindal's positives, more experience governing, and is heading a state not at risk of falling into Democratic hands.