Most voters likely couldn’t pick Ontario MP Michael Ma out of an identification lineup. Suddenly, he’s shot to fame — or infamy, depending on your politics.

Ma was first elected as a Conservative in April 2025 to represent the riding of Markham-Unionville. He celebrated his first Christmas in Parliament by attending two caucus Christmas parties. He partied with his Conservative colleagues on Wednesday. On Thursday, he showed up as an unexpected Christmas gift to Prime Minister Mark Carney at the Liberal caucus party. By crossing the floor, he’s betrayed not just the party that brought him to power, but his constituents who elected him to represent them — as a Conservative.

A weakness in the Westminster-style of parliamentary government is that an MP is elected as an individual, not as a

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