This US News blog entry argues that Mitt Romney could find a way to the 2012 Dem nomination by running for the Kennedy seat.
Romney isn't that popular in Massachusetts (the governor's seat flipped from Republican right after his term). And even worse, does anyone think Dems - in Massachusetts and in the rest of the country - won't be super energized to defend Ted Kennedy's seat from the likes of Mitt Romney?
And then Mitt would fail. Again.