On November 1, 2021, Montpetit was expelled from the Liberal caucus following anonymous allegations of harassment.

However, the National Assembly confirmed that there were no complaints against Marie Montpetit .

[2] On May 24, 2022, Montpetit announced that she would not be seeking a third term in the 2022 Quebec general election.

On May 30, 2024, she was appointed as the head of the Fédération des cégeps, which regroups 48 colleges throughout the province.

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