Warren Gamaliel Harding was the 29th president of the United States, serving from 1921 until his death in 1923. A member of the Republican Party, he was one of the most popular sitting U.S. presidents while in office. After his death, a number of scandals were exposed, including Teapot Dome, as well as an extramarital affair with Nan Britton, which tarnished his reputation.