What happens if the electoral votes are evenly split?

We head to Capitol Hill, where the U.S. House of Representatives would choose the President (each state delegation casting one vote) and the Senate would pick a vice president (each senator votes). Because the Republicans control the House, that would almost certainly result in a victory for Bush. The Senate situation is more tantalizing. If, as seems likely, the upper chamber is split 50-50 between the parties, the deciding vote is in the hands of the president of the Senate — who is none other than Vice President Al Gore.