He served as a member of the Legislative Assembly of Manitoba from 1949 to 1966, and was a cabinet minister in the government of Douglas Campbell.
He retained this position until the 1958 provincial election, in which Campbell's Liberal-Progressive lost power to Dufferin Roblin's Progressive Conservatives.
[1] Hryhorczuk himself was re-elected in the 1958 provincial election,[1] defeating future MLA Peter Burtniak of the CCF by almost 1,000 votes in the redistributed riding of Ethelbert Plains.
[1] Former CCF leader Lloyd Stinson once described Hryhorczuk as "[a]n extremely likable and friendly fellow ... surprisingly conservative, almost reactionary in his political philosophy, which made him an idea candidate for promotion to the Campbell cabinet."
He opposed humanitarian prison reforms during his time as Attorney General, and had little enthusiasm for the idea of rehabilitation.