Damn, krazen didn't post these polls. I wonder what their model is. So many models, so little time.
Obama has a large enough lead nationally that I think he's beginning to take the Senate races into consideration as to where to spend his time. Wisconsin is both the weakest of his 271 EV core and it has a close race that is at the moment a tossup that leans slightly to Baldwin. Obama only needs 270 EV, so he can afford to spend time in firewall states such as Wisconsin and Nevada where he looks fairly certain to win but the Senate race is in doubt. It's not so dominating a lead that he can afford to spend time in Montana and North Dakota as he can't neglect his own race, but the twofer states with close Senate races such as Virginia are definitely worth his while.
I agree too, although I don't know if Obama would go to North Dakota (and to a lesser extent Montana) to campaign on behalf of the Senate candidates because I don't think having the Democratic nominees standing next to the President wins them votes. Even if the Presidential race was out of reach for Romney.
