what if Al-Qaeda pulls off a terror attack on the same scale as 9/11 between November 1st and 7th? what if the attack kills Bush, Gore, and other candidates?
Al Gore and George W. Bush dying on the exact same day by al-Qaeda is highly unlikely, because their targets were, the World Trade Center, the Pentagon, and Washington, D.C., all important landmarks of the United States and its leadership. They would have to stalk Gore and Bush and find out where they are, which is timely and tedious. Assuming that "other candidates" means the Vice Presidential nominees, the election could very well be between the second place winners of both parties' primaries.