Robert Novak: Hillary's Dirt on Obama

Robert Novak writes:

Agents of Sen. Hillary Clinton are spreading the word in Democratic circles that she has scandalous information about her principal opponent for the party's presidential nomination, Sen. Barack Obama, but has decided not to use it. The nature of the alleged scandal was not disclosed.

This word-of-mouth among Democrats makes Obama look vulnerable and Clinton look prudent. It comes during a dip for the front-running Clinton after she refused to take a stand on New York Gov. Eliot Spitzer's now discarded plan to give driver's licenses to illegal aliens.

Experienced Democratic political operatives believe Clinton wants to avoid a repetition of 2004, when attacks on each other by presidential candidates Howard Dean and Richard Gephardt were mutually destructive and facilitated John Kerry's nomination.