How did George W. Bush win the president election 2000 despite loosing the popular vote?

Bush won the electoral vote despite losing the national popular vote.

George W. Bush won the 2000 presidential election defeating Albert Gore, Jr. In the 2000 presidential election George W. Bush received 271 (50.5%) electoral votes and Albert Gore, Jr. received 266 (49.5%) electoral votes. The popular vote totals were Gore 50,996,582 (50.3%) and Bush 50,456,062 (49.7%). Green Party candidate Ralph Nader won 2,882,955 popular votes. Nader did not receive any electoral votes.