Steve Kornacki agrees with Larison that she'd be a disastrous presidential candidate (I think that understates her talent as a performer) but also sees why her nomination is perfectly possible:
Today's GOP calls to mind the Democratic Party of '82 and '83: an aggrieved, resurgent base asserting itself after an electoral drubbing, believing with all its might that inevitable midterm blues facing the new president mean more than they actually do. That is the environment that produced Walter Mondale in 1984. And it's the environment that could produce a similar debacle for Republicans in 2012.