Subhead:A demonstration at former Conservative MP Michael Ma's office by concerned constituents called on the “shameless” floor crosser to step down as a petition demanding his resignation reaches nearly 40,000 signatures.# Over the weekend on Sunday, Dec. 14, fed up residents of Ontario's Markham-Unionville riding organized a protest outside the office of MP Michael Ma, calling for his resignation. The former Conservative shocked Canadians after his surprise appearance at the Liberals' Christmas party on December 11, where Prime Minister Mark Carney announced Ma would be joining the party. This came a day after Ma participated in festivities at the Poilievre Conservatives' own Christmas party. TODAY: Markham-Unionville residents protest against former Conservative MP Michael Ma over his switch to the Liberal party of Canada. There now is nearly 40k petition signatures calling for the MP to resign. They say tomorrow, Monday Dec 15 another demonstration is happening. pic.twitter.com/WXaFxjStab — Efrain Flores Monsanto (@efloresmonsanto) December 14, 2025 An Instagram account called Canada.vs.Everybody organized a demonstration outside of Ma’s constituency office in the riding to voice their displeasure over his actions. Some of the personal signs held by those attending called the MP “shameless” and said he “deceived” and “betrayed” voters in the Greater Toronto Area riding. Another called Ma a “puppet” of the Chinese Communist Party, adding that the riding should have “no CCP puppet.”