His announcement created a controversy because during his speech, Villemure claimed to have the unanimous support of the riding executive, a statement that was relayed by the party's national leadership.

[9] On August 16, 2021, the day after Prime Minister Justin Trudeau called the federal election, Yves-François Blanchet, leader of the Bloc Québécois, announced that René Villemure would be the party's candidate in Trois-Rivières, confirming that there would be no nomination meeting in the riding.

The Conservative Lévesque requested a recount, which took place from October 5 to 7 in the basement of St. Pius X Church under the supervision of Judge Jocelyn Geoffroy.

[14] René Villemure has been named the Bloc Québécois' spokesperson for Ethics, Privacy and Access to Information and the International Francophonie.

[17] In December 2021, René Villemure raises potential privacy issues as the Public Health Agency of Canada uses cellular location data to fight the pandemic.

[18] In July 2022, Villemure, with the support of the Conservatives and the New Democratic Party, obtained an Ethics Committee review of the Royal Canadian Mounted Police's use of spyware.

[23] René Villemure, L'éthique pour tous... même vous!, Montreal, Les Éditions de l'Homme, September 2019, 216 pp.

(ISBN 978-2-7619-5301-6) Villemure receives an honorary doctorate in 2019 from the Université du Québec à Trois-Rivières for his outstanding contribution to the advancement of society in the field of ethics.