Another Conservative crosses the floor, bringing Liberals 1 MP shy of majority

Ontario MP Michael Ma announced Thursday that he is leaving the Conservative caucus and joining the Liberals.

The MP said in a statement that he made the decision after listening to his constituents in the riding of Markham-Unionville in the Greater Toronto Area.

"This is a time for unity and decisive action for Canada's future," he wrote.

"In that spirit, I have concluded that Prime Minister Mark Carney is offering the steady, practical approach we need to deliver on the priorities I hear every day while door-knocking in Markham-Unionville."