Republicans gained a net total of 24 seats in the 1918 elections, increasing the size of their majority in the House. Gillett was nominated by the Republican caucus for Speaker of the House in the upcoming 66th United States Congress.[5] On May 19, 1919, Congress convened, and he was elected speaker, defeating the Democratic incumbent Champ Clark 228–172.[6] Gillett was expected to exercise less control than his predecessor, since he was characterized by one reporter as someone who did not drink coffee in the morning "for fear it would keep him awake all day".[7] He was reelected as speaker in 1921 and again in 1923.
In 1923, votes cast by the Progressive wing of the GOP resulted in multiple ballots as no Speaker candidate gained a majority. On the ninth ballot, after the Republican leadership agreed to Progressive procedural reforms, Gillet was eventually elected. This was the only time in the 20th century that the House failed to elect a Speaker during the first roll call,[8] and the 14th time in history that election of the Speaker required multiple ballots. The previous occurrence was in 1859 for the 36th Congress, which elected William Pennington after 44 ballots.[9] The next occurrence was a century later in 2023 for the 118th Congress,[10] which elected Kevin McCarthy after 15 ballots.[11]
Gillett decided to run for the United States Senate in 1924. He won the Republican primary easily over two other candidates[12] and then narrowly defeated incumbent Senator David I. Walsh in the Republican landslide of November 1924 led by President Calvin Coolidge, a former governor of Massachusetts.[13] He was at the time the oldest person ever elected to a first term in the Senate, a record that would stand for 98 years.[14]Time magazine chose him for its November 17, 1924 cover.[15] He served one term in the Senate from 1925 to 1931, and decided not to seek re-election in the face of a difficult primary challenge.[16] In June 1930, he declined to state his position on prohibition or its repeal when queried by prohibition advocates.[17]
Personal life
On November 25, 1915, Gillett married Christine Rice Hoar, the widow of his former colleague in Congress, Rockwood Hoar.[18] In 1934, he published a biography of George Frisbie Hoar, an earlier congressman and senator from Massachusetts, and his wife's father-in-law from her previous marriage.[19]
During his time in Washington, Gillett spent his free time driving his 1926 Pontiac Coupe and playing golf in the morning. In retirement, he wintered in Pasadena, California. He died in a hospital in Springfield, Massachusetts, on July 31, 1935. Gillett was buried at Pine Hill Cemetery in Westfield.[1]
^Heitshusen, Valerie; Beth, Richard S. (January 4, 2019). "Speakers of the House: Elections, 1913–2019"(PDF). CRS Report (RL30857). Washington, D.C.: Congressional Research Service. Retrieved July 9, 2019.