We have very foggy election forecasts heading into next Tuesday’s voting, and unless something changes in the next several days, one or more of the nation’s top polling organizations is going to be flat wrong. According to Rasmussen and Gallup, Mitt Romney is winning. According to Quinnipiac/CBS/NY Times, President Obama is winning. They can’t both be right.

Those findings are based on national tracking polls. But even at the state level the polls differ sharply. Rasmussen finds that Romney ha...