OTTAWA — Toronto MP Michael Ma is leaving the Conservatives to join Prime Minister Mark Carney's Liberals.
Ma, who represents Markham-Unionville, said he made the decision after listening “carefully” to people on his trips in recent weeks and reflecting with his family on the direction of the country.
Ma says now is a time for “unity and decisive action for Canada's future.”
He says Carney offers “the sustainable, hands-on approach we need to achieve the priorities I hear about every day when I knock on doors in Markham-Unionville.”
His move puts the Liberals one seat behind the majority government's 171 seats.
Last month, Nova Scotia MP Chris d'Entremont left the Conservative caucus to join the Liberals, just hours after the government introduced its latest budget in the House of Commons.
This report by The Canadian Press was first published Dec. 11, 2025.






