[1] Copp won the Liberal-Progressive nomination for St. Clements in the spring of 1953, defeating Fred Klym by six votes.
Copp appears to have left the Liberal-Progressives before the 1958 provincial election, and campaigned for re-election as an independent candidate in Brokenhead.
He ran for the assembly again in the 1959 election,[2] but received only 346 votes as an independent candidate in Lac du Bonnet, for a fourth-place finish.
In the 1966 election, he ran as an Independent Liberal in Brokenhead and received 669 votes, finishing third behind NDP candidate Sam Uskiw.
Finally, he campaigned against NDP leader Edward Schreyer in the 1969 election as an independent, and finished a distant fourth with 238 votes.