U.S. Senator from Louisiana David Vitter's depends on the conservative, white male vote, so he's reluctant to take controversial, pro-civil rights positions that might alienate his base. That's the reason Vitter, unlike his fellow-Republican Governor Bobby Jindal, won't condemn a Louisiana justice of the peace who won't perform interracial marriages. Nice.
Read it here, and watch Vitter evade an interviewer with the old closing elevator door trick, here: Crooks and Liars Video Cafe: David Vitter Won't Comment on Justice's Refusal to Marry Interracial Couple