Thatcher was a former Liberal who had crossed the floor to the Progressive Conservatives prior to that party winning power in the 1982 election.
After Thatcher resigned in disgrace upon receiving a life sentence for the 1983 murder of his ex-wife, Stewart twice sought the PC nomination, first for the ensuing by-election in 1985 and again for the 1986 general election.
[4] Stewart was subsequently elected in Lumsden-Morse, a new electoral district encompassing most of the former Thunder Creek constituency.
[7] Stewart caused controversy in October 2022 when his mentor Colin Thatcher attended the Speech from the Throne.
He was removed from his role as legislative secretary by Saskatchewan Premier Scott Moe but permitted to remain as a party caucus member.