(CBS News) Mitt Romney's campaign got its first hint something was wrong on the afternoon of Election Day, when state campaign workers on the ground began reporting huge turnout in areas favorable to President Obama: northeastern Ohio, northern Virginia, central Florida and Miami-Dade.
Then came the early exit polls that also were favorable to the president.
But it wasn't until the polls closed that concern turned into alarm. They expected North Carolina to be called early. It wasn't. They expected Pennsylvania to be up in the air all night; it went early for the President.
Advertisement - story continues below
After Ohio went for Mr. Obama, it was over, but senior advisers say no one could process it.