Tag . . . You're It

MoveOn.org went after Rudy Giuliani yesterday.

Rudy responds today with a 30-second radio ad, calling MoveOn "the most powerful left-wing group in the country."

Sound Bite: "They know Rudy is a Republican who can beat the Democrats."

The all new
CBS News App for Android® for iPad® for iPhone®
Fully redesigned. Featuring CBSN, 24/7 live news. Get the App