Early history
In 2009, former Union Nationale Members of the National Assembly of Quebec (MNAs) Serge Fontaine and Bertrand Goulet announced the formation of a new Conservative Party of Quebec.
In November 2009, Fontaine offered Éric Caire, who at the time sat with the Action démocratique du Québec (ADQ), the opportunity to join the party and become its leader, with the goal of attracting disaffected ADQ supporters. This did not materialize and Caire sat as an independent before joining the Coalition Avenir Québec in November 2011.
In January 2012, the party, which still existed on paper, was taken over by the former federal Conservative Member of Parliament (MP) for the Louis-Hébert riding, Luc Harvey, who became its leader.
In contrast to the newly formed CAQ, which is neutral on the sovereignty issue, Harvey said the Conservatives will be federalist, promote a social conservative agenda and a flat tax.
In March 2012, the party's website announced that former Action démocratique du Québec (ADQ) MNAs Monique Roy Verville and Albert De Martin would run for the party in the upcoming election.
On 10 September 2012, it was announced that Harvey was stepping down as party leader. De Martin was named interim leader on 21 September.
In December 2012, De Martin launched a leadership election. As a result, two contenders, Daniel Brisson and Adrien D. Pouliot, declared their intention to run.
In mid-February 2013, Brisson withdrew from the leadership election, leaving Pouliot as the sole candidate.
Pouliot was acclaimed the new leader on 23 February 2013 and immediately put a new constitution forward for the members present at its convention. It was immediately ratified by all the members and refocused the stance of the party to more of a centre-right value system. Later that day, he took a stance against the proposed Parti Québécois laws 14 and 20.
In the 2014 provincial election, the party nominated 60 candidates, who won 16,429 votes, 0.4 percent of the total votes cast in the province. In the 2018 election, these numbers increased to 101 nominated candidates winning 59,055 votes, or 1.5 percent of the total votes.
Rise under Éric Duhaime
On 16 October 2020, Adrien Pouliot announced he would be resigning as leader of the party to pursue further business ventures, but opted to stay on until a new leader was elected in the 2021 leadership election, which was won by columnist Éric Duhaime who handily defeated repeat candidate Brisson in a two-way contest.
On 18 June 2021, Claire Samson became the first member of the modern Conservative Party of Quebec to sit in the Quebec legislature. This followed her expulsion from the CAQ three days prior, after she donated $100 to the Conservative Party of Quebec.
The Conservative Party of Quebec nominated candidates in all 125 ridings for the 2022 provincial election. The party won 12.91% of the popular vote, placing fifth in the popular vote and winning no seats despite four opposition parties being closely matched in the popular vote, but performing strongly in many ridings, especially in the Capitale-Nationale and Chaudière-Appalaches regions with a strong conservative tradition. However, the party made gains throughout the province at the expense of Liberals, reducing the Liberal vote share in its traditional strongholds such as Montreal. Party leader Duhaime expressed his opposition to Bill 96, a French language law.
On 24 March 2026, independent MNA Maïté Blanchette Vézina joined the party; she was previously a member of the Legault ministry. That same year, the party rose considerably in popularity; winning 19 seats in the 2026 provincial election, particularly in the Quebec City area, and winning 20.7% of the popular vote.
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