He served one term as Mayor of Trenton. He represented the riding of Northumberland in Parliament from 1930 through 1950. He served as Chief Whip in the Mackenzie King government. He was later appointed to the Senate, where he remained until his death in 1962.
Fraser pursued a variety of business interests including the Trenton Cooperage Mills, a major cold storage business, fruit-growing and processing, regional newspapers, movie theatres, and a bridge-building company that later helped manufacture corvettes for the Royal Canadian Navy during World War II.