In our NBC-Marist poll of Florida, Romney leads with landline respondents, 48%-45%. But Obama leads among cell phone respondents, 57%-34%. And in Virginia, Romney’s up one among landline folks, 47%-46%, while Obama is up 54%-36% with cell users. (By the way, 28% of our interviews in OH and FL were conducted on cell phone; 27% in VA.)

That's the GOP's generation gap in a nutshell.