After the war, he served as city attorney of Saginaw from 1919 to 1923. In 1922, Vincent was elected as a Republican from Michigan's 8th congressional district to the 68th Congress, and subsequently re-elected to the four succeeding Congressional terms, serving from March 4, 1923 until his death in 1931.
From 1919 to 1923, he served as Saginaw's city attorney. In 1922, Vincent was elected a Republican from Michigan's 8th congressional district to the 68th Congress and subsequently re-elected for four more terms until his death in 1931.