He was a member of the House of Commons of Canada from 1921 to 1925, served in the Legislative Assembly of Manitoba from 1927 to 1936, and was a cabinet minister in the government of John Bracken.
[1] He did not hold a seat in the legislature at the time but was a prominent campaigner for the Progressive Party in the 1927 provincial election, and defeated independent incumbent Donald A. Ross by 710 votes in the St. Clements constituency.
In 1932, Hoey played a prominent role in negotiations between Manitoba's Progressive and Liberal parties, which resulted in a Liberal-Progressive electoral alliance.
Hoey was defeated in the 1936 provincial election, losing to Independent Labour Party candidate Herbert Sulkers by 665 votes.
After his electoral defeat in 1936, he became Superintendent of Welfare and Training in the Indian Affairs Branch of the federal Department of Mines and Resources.