8:40 p.m. E.T.
The outside groups supporting Mitt Romney have a shared sense that Obama’s need to make sure he protects Ohio leaves other states on his flank potentially vulnerable.
According to news accounts and a Republican source familiar with the outside group activity, Americans for Job Security went up with TV ads in Pennsylvania over the weekend, and Restore Our Future goes on the air there Tuesday.
And now both this source and Karl Rove speaking on Fox News Monday evening suggest American Crossroads just might also go on the Keystone State TV airwaves as early as Wednesday.
Americans for Prosperity and Americans for Job Security are both on the air on Minnesota TV.
And the main Restore Our Future has gone on the air in Michigan, where they might also be joined by American Crossroads.
The storm has scrambled everything, including TV ad strategies, but there is no doubt that if the public polls are even close to correct, all these end-game ad buys are going to put some resource pressure on Chicago.