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Mario Dumont

Mario Dumont is a Canadian former politician and television personality from Quebec.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Mario Dumont (born May 19, 1970) is a Canadian former politician and television personality from Quebec. He was a Member of the National Assembly of Quebec for Rivière-du-Loup from 1994 to 2009 and led the Action démocratique du Québec (ADQ) from 1994 until 2009. He later became a media commentator and television host.

Early life and education

Mario Dumont was born in Cacouna, Quebec, on May 19, 1970. He earned a bachelor’s degree in economic studies from Concordia University in 1993.

Political career

Dumont entered politics in the late 1980s and was active in the Quebec Liberal Party youth wing. He helped found the Action démocratique du Québec (ADQ) in 1994 and became its leader the same year. In the 1994 provincial election, he was first elected to the National Assembly of Quebec as the MNA for Rivière-du-Loup. He remained an ADQ member of the National Assembly until 2009.

Leadership of the ADQ

As ADQ leader, Dumont promoted an autonomist Quebec platform focused on greater provincial autonomy, state modernization, individual liberties, and economic development. The party’s strongest result came in the 2007 provincial election, when it became the official opposition, and Dumont served as Leader of the Opposition.

Later career

Dumont resigned from politics in 2009 and moved into private-sector and media work. He became a television host and commentator, including presenting a French-language current affairs program. His post-political career has been described in media reports as including private-sector roles and ongoing media commentary.

Key facts

  • Mario Dumont founded and led the Action démocratique du Québec (ADQ) from 1994 to 2009.
  • He served as the Member of the National Assembly for Rivière-du-Loup from 1994 to 2009.
  • After the 2007 election, he led the ADQ to become the official opposition and served as Leader of the Opposition.
  • He left politics in 2009 and transitioned to a career in media and the private sector.
  • Dumont was born in Cacouna, Quebec, in 1970 and studied economic studies at Concordia University.
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Canadian context

Mario Dumont is a notable Quebec political figure whose career shaped debate over Quebec autonomy, provincial politics, and the ADQ’s rise in the 2000s.

Frequently asked questions

Who is Mario Dumont?
Mario Dumont is a Quebec political figure and former television personality who led the ADQ and served as an MNA for Rivière-du-Loup from 1994 to 2009.
What political party did Mario Dumont lead?
He led the Action démocratique du Québec (ADQ) from 1994 to 2009.
Which riding did Mario Dumont represent?
He represented Rivière-du-Loup in the National Assembly of Quebec.
When was Mario Dumont born?
He was born on May 19, 1970.
When did Mario Dumont leave politics?
He resigned from politics in 2009 and moved on to private-sector and media work.
What was Mario Dumont’s political outlook?
Sources describe him as an autonomist and as favoring greater Quebec autonomy, state modernization, and economic development.

References

  1. AIMShttps://www.aims.ca/site/media/aims/DumontBio.pdf
    Supports: Birth date and place, education, ADQ founding and leadership, electoral history, political outlook.
  2. Wikipediahttps://en.wikipedia.org/wiki/Mario_Dumont
    Supports: Overview of career, ADQ leadership dates, office held, and later television work.
  3. Wikipedia (French)https://fr.wikipedia.org/wiki/Mario_Dumont
    Supports: Dates of service as MNA and ADQ leader, resignation in 2008/2009.
  4. CBC Newshttps://www.cbc.ca/news/canada/montreal/dumont-bids-farewell-to-political-life-1.789147
    Supports: Resignation from leadership and exit from politics.
  5. Radio-Canadahttps://ici.radio-canada.ca/nouvelle/353196/bio-dumont-accueil
    Supports: Birth in Cacouna, Quebec, on May 19, 1970.
  6. CBC Newshttps://www.cbc.ca/news/canada/montreal/adq-s-ex-leader-done-with-politics-and-looks-to-tv-1.794321
    Supports: Transition to television hosting after politics.
  7. The Canadian Encyclopediahttps://www.thecanadianencyclopedia.ca/en/article/mario-dumont-interview
    Supports: Autonomist political framing and Quebec autonomy context.
  8. Literary Review of Canadahttps://reviewcanada.ca/magazine/2024/12/in-this-assembly/
    Supports: ADQ rise, 2007 official opposition role, later commentary career.