Clark takes the lead in SC

So, I go out on a bit of a limb this morning and say that, despite the evidence, I still believe that John Edwards could surprise some people before this presidential race is over.

And what's the top political story of the hour?

Clark has pulled ahead in Edwards' must-win state.

CLARK UPDATE: His campaign may opt out of the federal campaign finance system.

Next hour: A medical mystery involving a Democratic president, as the Blogathon continues.