[3] The son of Walter Mandrake, he was educated at the Red River Community College,[4] receiving a certificate in motor vehicle work.
[2] Mandrake also served with the Canadian Army which he joined in 1956,[4] holding administrative posts in Canada and Europe.
[4] Mandrake first ran for office in the 1988 provincial election,[1] and defeated incumbent Progressive Conservative Ric Nordman by 187 votes in Assiniboia.
[5] The Liberals increased their parliamentary representation from one seat to twenty in this election, and Mandrake sat as a member of the official opposition.
Liberal support trailed off in the provincial election of 1990, and he was defeated by PC candidate Linda McIntosh.