Actually , it makes more sense than the polls where Ras showed Romney leading the popular vote while trailing in the EV. If anything, it should be the other way around.
It’s very possible for teh national poll to be misleading, because candidates can have huge leads in California, NY, Texas, etc. and those big leads affect the national total.
But yeah, if Obama seems weaker in some of his blue states, and Romney is strong in red states, you’d think Romney would show a national lead.
Then again we are talking about many polls from many pollsters. I think Rasmussen has it pretty close everywhere.