Ontario MP Marilyn Gladu leaves Conservatives to join Liberals

Ontario MP Marilyn Gladu says she has left the Conservative caucus and will sit with the Liberals under Prime Minister Mark Carney, becoming the fifth member of Parliament to cross the floor since November.

Gladu confirmed the move in a statement, saying she will support the government’s agenda going forward. The reasons for her decision were not immediately detailed, and it is not clear whether she will take on a formal role within the Liberal caucus.

Floor crossings do not trigger a byelection under federal rules, meaning Gladu will continue to represent her Ontario riding as a Liberal MP until the next general election. Party standings in the House of Commons shift with such moves, affecting committee representation and voting dynamics.