Elected to the United States House of Representatives in 1893, Williams soon became a leader of the Democratic minority, renowned for his speaking skill and wit. Like most other Southern Democrats of the day, he was a proponent of coining silver and an opponent of high tariffs; unlike them, he refused to use racebaiting to build political popularity. In 1906, when Great Britain launched HMS Dreadnought, Congressman Williams introduced a bill to change the name of USS Michigan to USS Skeered O' Nothin' as a challenge to the prestigious English. During his time as ranking Democrat in the Republican-controlled House, Williams was given the privilege of choosing the Democrats assigned to committees by the House Speaker Joseph Gurney Cannon, giving him tremendous power within the minority party. In gratitude, Williams was known to omit Democrats whom Cannon found particularly objectionable from committee assignments. Recognizing his status vis-à-vis Cannon, Williams jokingly described his relative political impotence in the Cannon-dominated Committee on Rules, "I am invited to the seances but I am never consulted about the spiritualistic appearances." By beating one of Mississippi's leading racebaiters, James K. Vardaman, Williams moved to the United States Senate in 1911 after an 1910 and 1911 United States Senate elections||early election on 21 January 1908. He became one of Woodrow Wilson's strongest supporters, from Wilson's nomination for the Presidency in 1912 to the losing battle to ratify American participation in the League of Nations in 1920. During his time as a senator, he also served as a chairman of the Committee to Establish a University of the United States. He gave a classic denunciation of the black race when he declared on December 20, 1898: "You could ship-wreck 10,000 illiterate white Americans on a desert island, and in three weeks they would have a fairly good government, conceived and administered upon fairly democratic lines. You could ship-wreck 10,000 negroes, every one of whom was a graduate of Harvard University, and in less than three years, they would have retrograded governmentally; half of the men would have been killed, and the other half would have two wives apiece." After retiring from the Senate in 1923, Williams returned to his family plantation, where he spent the last decade of his life.
