Albert Arnold Gore Jr. is an American politician, businessman, and environmentalist who served as the 45th vice president of the United States from 1993 to 2001 under President Bill Clinton. A member of the Democratic Party, he previously represented Tennessee in both houses of the U.S. Congress, first as a member of the U.S. House of Representatives from 1977 to 1985, and then as a U.S. senator from 1985 to 1993. Gore was the Democratic nominee in the 2000 presidential election; he lost to George W. Bush despite winning the popular vote.