
The proportion of Republicans who don't want to vote for Romney seems very large and undeterred by the lack of credible alternatives. Perry has a lot of money, and it's plausible that he can improve his debating performance (which has already risen from "addled" to "near-sentient"). If Republicans aren't flocking to Romney now, it's a sign they want to give every chance for somebody else to emerge.
Seth Masket agrees:
Yes, the Mormon thing is a problem for the Evangelicals in the Republican base, but my sense is that the bulk of them would be still find a way to turn out votes for a Mormon over whatever they think Obama is. Of greater concern is the fact that Romney is a really unreliable conservative. Sure, as long as he believes he needs the right's support to get into or stay in office, he'll advocate what they want, but can they trust him to stay faithful to the cause? I imagine that a President Romney would work quite well with a Democratic Congress. That thought has to terrify conservative activists.
Arguments against President Romney as bipartisan here. Chart from Charles Franklin. I'm not sure any future nominee has such a rise and fall in the polls before rising again. McCain had a reverse "U". But I'm sure Dish readers will correct me if I'm wrong.