Long answer: Constitutional crisis that the historians and scholars and lawyers will sort out.
Short answer: Biden.
If (when, I hope and pray) obama is thrown out and sent to prison, I want a special election called. The good people of the United State's have had a taste, just a taste of radical, far-left leadership in the House, Senate, and White House. I think a special election would be very good for conservatives. Of course, that means the socialist controlled Congress will never go for it.