Another Obama Victory

Barack Obama has won Wisconsin -- a white, blue-collar state that should be perfect for Clinton -- and among a broad demographic. In fact, he's won or tied every demographic group.

Democrats may well take all this as yet another go-ahead signal that it's safe to make Barack their nominee. That's bad news for Hillary, increasing the chances that her surrogates are going to have to continue to try to make race-based arguments against an Obama nomination.