pct_18bi4z Conservative leadership convention, 1983 Brian and Mila are jubilant upon hearing the results of the final ballot. Mulroney edged out Joe Clark by a margin of a few hundred votes to take over leadership of the Conservative Party, 1983. Canapress Photo Service (Deryk) pct Elections;Political Rivalry Mulroney, Brian; leadership; Clark, Joseph Charles Mulroney Bio 0