A bad economy usually dooms the incumbent, but as ABC News Senior Analyst Cokie Roberts says, polls show Americans assign equal blame to President Obama and the Republican-controlled House of Representatives.
"That's why it's so interesting," Roberts said. "We're going into an election and people are unsettled. Also, the independent vote is way up than normal, partly because people are disgusted with both parties and that's a vote that can swing either way."
Roberts said President Obama has to convince voters that if they get rid of him, it'll only help the fat cats while his challengers will make the case that the president has had his chance and failed.