Charles Gates Dawes ( August 27 , 1865 â `` April 23 , 1951 ) was an American banker and politician who was the thirtieth Vice President of the United States . Charles Gates Dawes ( August 27 , 1865 -- April 23 , 1951 ) was an American banker and politician who was the 30th Vice President of the United States ( 1925-1929 ) .