A February Surprise?

Rhodes Cook thinks that "another establishment Republican could enter the race in early February and still compete directly in states with at least 1,200 of the 2,282 or so GOP delegates." Bill Kristol salivates at the thought. Jonathan Tobin blows up his fantasy:

It’s fair to ask why if Paul Ryan or Marco Rubio or Mr. or Ms. Unknown chose not to run back in the summer when they could have entered every primary (the filing dates for many states has already passed), they would do so now? Let’s just say if they had really wanted to run, they already would have. … As crazy and unpredictable as this race has been, the idea of a Valentine’s Day surprise says more about the unfulfilled hopes of GOP activists for a better candidate with which to oppose President Obama than it does about the actual chances of another Republican getting into the race.