In my continuing efforts to guage the most effective presidential and/or GOP nominee impersonations out there, we come now to Jimmy Fallon's Mitt Romney from Tuesday's show. It's quite good - and so far, the winner. (Jason Sudeikis could take pointers.) What's so good here - the pop culture references, the feigned laughter, the idea that Mitt Romney is actually more cooly ironic than anyone gives him credit for. Fallon's Romney scores!