Tom's right that Hillary Clinton is right (if Rupert Murdoch can start agreeing with Hillary, so can we) about there being "no do-overs" in life or in politics.

What this points to, however, is just how big a gap there's going to be to Hillary's left as we come into 2008. The famed netroots want to cut her off at the knees (even though they've proved unwilling to even nip at her heels in her Senate reelection campaign this year).

If a candidate emerges to court this crowd -- and Mark Warner is doing everything he can right now, by cozying up to its leaders and throwing lavish blogger parties -- that will be a powerful force to reckon with in the primaries.

Much of the far Left's foreign policy right now, after all, is based precisely on pining for a "do over."