The Member of Parliament from Sarnia—Lambton—Bkejwanong, Marilyn Gladu, is crossing the floor to join the Liberals, making the government one short of a majority.
Gladu said, in a statement, she is joining Prime Minister Mark Carney as she believes it is “the best thing for our community’s priorities and for our country.”
She is now the fifth MP to join the Liberals since the 2025 election and the fourth Conservative.
Chris d’Entremont, Michael Ma and Matt Jeneroux all left the Conservatives to join the Liberals between November 2025 and February 2026. Nunavut MP Lori Idlout left the NDP in March.
The move comes ahead of three byelections this Monday. If the Liberals win one of three seats, they will officially have a majority government.
Carney also released a statement welcoming Gladu to the Liberal party.
“Marilyn brings the practical, results-driven leadership this effort demands. Having spent decades of her career in engineering and international business, she understands what it takes to create good jobs, strengthen supply chains, and ensure Canadian industry can compete in a rapidly changing global economy,” read his statement.
Gladu was first elected in 2015 election and has been re-elected three times.
