Hour by hour: What to watch on election night - Article Photos 1/6

FILE - This Oct. 29, 2012 file photo shows a"Vote Early" sign as former President Bill Clinton spoke at a President Barack Obama campaign rally in Youngstown, Ohio. Stock up on munchies and make sure the batteries in your TV remote are fresh. With this year's presidential election razor-close to the finish, Tuesday could be a long night. Even if the presidency isn't decided until after midnight EST, there will be plenty of clues early in the evening on how things are going for President Barack Obama and Republican Mitt Romney. Obama has more options for piecing the 270 electoral votes needed for victory, so any early setbacks for Romney could be important portents of how the night will end. (AP Photo/Matt Rourke, File)