[tanknetter]

This is huge though if it’s Brown.

I'm not sure that he'd fall into the category of being a "powerful Senator". Isn't he the Juniormost one at the moment?

"Powerful" would seem to indicate leadership or one of the big committee chairs. Since it's stated as something that will "shake up" the campaign should we assume that it's a Senator up for reelection too? That really starts narrowing the field, especially since the Drudge/Daily Caller involvement would seem to indicate that it's a Dem.

[CheneyChick]

And we can pretty much write off the CA babes Boxer & Feinstein..... lol