Tatiana Auguste

Tatiana Auguste
MP
Member of Parliament
for Terrebonne
Incumbent
Assumed office
April 13, 2026
Preceded byHerself
In office
April 28, 2025 – February 13, 2026
Preceded byNathalie Sinclair-Desgagné
Succeeded byHerself
Personal details
Born2001 (age 24–25)
Port-au-Prince, Haiti
PartyLiberal
EducationConcordia University
Websitetatianaauguste.liberal.ca

Tatiana Auguste (born 2001) is a Canadian politician who is the member of Parliament (MP) for Terrebonne. Elected in the 2025 federal election by a margin of one vote as a member of the Liberal Party of Canada, her election was annulled by the Supreme Court of Canada on February 13, 2026, causing a by-election to be held. Auguste would later win that by-election and reclaim her seat, this time by a wider margin of 668 votes, on April 13, 2026.

Early life

Auguste was born in Port-au-Prince, Haiti, in 2001.[1][2] Her family immigrated to Canada in 2008, settling in Montreal. She studied economics at Concordia University, afterward working as an e-commerce consultant for the Fédération des chambres de commerce du Québec. Auguste also worked as an assistant to Bourassa MP Emmanuel Dubourg.[3] At the time of the 2025 Canadian federal election, she lived in Montréal-Nord.[4]

Political career

Auguste ran as the Liberal candidate for the riding of Terrebonne in the 2025 federal election. She was thought to have defeated incumbent Bloc Québécois MP Nathalie Sinclair-Desgagné by 35 votes in the initial vote count. However, subsequent validation of the count by Elections Canada showed that Sinclair-Desgagné had retained her seat by a 44-vote margin.[5] Due to the tight margin, an automatic recount was called.[6] On May 10, 2025, the judicial recount in the Superior Court of Quebec flipped the seat back to Auguste by a one-vote margin, the narrowest result in the country.[7] She was one of four people born in the 21st century elected to the House of Commons in the 2025 election.[8] Auguste called the experience "a rollercoaster. From winning to not winning, and then winning again".[9]

On May 13, a Bloc Québécois voter disclosed that her mail-in ballot had been returned to her due to a postal code misprint on the envelope provided her by Elections Canada.[10] After Elections Canada said that it did not have legal standing to change the result, Bloc Québécois announced on May 15 that it would seek a court order for a new by-election. The same day, Elections Canada stated that five other mail ballots with the incorrect returning address printed had been rejected because they had arrived at the Elections Canada office in the riding after the deadline; the statement said that it could not determine if the incorrect address was responsible.[11] The election result was upheld on October 27 by the Superior Court of Quebec.[12] On November 3, Sinclair-Desgagné announced that she would be appealing the ruling to the Supreme Court of Canada.[13][14] On February 13, 2026, the Supreme Court annulled the result of the election in the riding, leaving the seat vacant.[15][16]

Auguste won the ensuing by-election on April 13, 2026, defeating Sinclair-Desgagné by a margin of 668 votes.[17]

Electoral record

Canadian federal by-election, April 13, 2026: Terrebonne
2025 result annulled by Supreme Court
Party Candidate Votes%±%
LiberalTatiana Auguste22,44548.32+9.59
Bloc QuébécoisNathalie Sinclair-Desgagné21,77746.89+8.15
ConservativeAdrienne Charles1,5483.33-14.85
New DemocraticMaxime Beaudoin2480.53-2.05
GreenBenjamin Rankin1940.42-0.63
People'sMaria Cantore1130.24-0.47
RhinocerosMark Moutter610.13–
IndependentJulie St-Amand70.02–
IndependentNicolas Champagne50.01–
IndependentGeneviève Dorval40.01–
IndependentMyriam Beaulieu30.01–
No AffiliationSébastien CoRhino30.01–
IndependentSamuel Pignedoli30.00–
IndependentMyles René Laurent St. Pierre30.01–
IndependentAlex Banks20.00–
IndependentSophia Bearden20.00–
IndependentSamuel Ducharme20.00–
IndependentElizabeth Dupuis20.00–
IndependentLaurie Goble20.00–
IndependentSeyed Hosseini Lavasani20.00–
IndependentRyan Huard20.00–
IndependentKrzysztof Krzywinski20.00–
IndependentBryan Wang20.00–
IndependentDanica Boe10.00–
IndependentJenny Cartwright10.00–
IndependentJaël Champagne Gareau10.00–
IndependentJayson Cowan10.00–
IndependentMichael Dyck10.00–
IndependentAnthony Hamel10.00–
IndependentChris Kowalchuk10.00–
IndependentJohn Francis O'Flynn10.00–
IndependentSpencer Rocchi10.00–
IndependentPascal St-Amand10.00–
IndependentVivian Unger10.00–
IndependentJeani Boudreault00.00–
IndependentGerrit Dogger00.00–
IndependentYsack Dupont00.00–
IndependentAlexandra Engering00.00–
IndependentEmily Goose00.00–
IndependentKazimir Haykowsky00.00–
IndependentJack Jean-Louis00.00–
IndependentJoseph Alain Matthew Laveault00.00–
IndependentJocelyn LeBlanc-Courchaine00.00–
IndependentLanna Palsson00.00–
IndependentLajos Polya00.00–
IndependentKayll Schaefer00.00–
IndependentJustin Steinburg00.00–
IndependentAlon Weinberg00.00–
Total valid votes/expense limit 46,443
Total rejected ballots 371
Turnout 46,81451.25-16.68
Eligible voters 91,344
Liberal hold Swing +0.72
Source: Elections Canada
2025 Canadian federal election: Terrebonne
Party Candidate Votes%±%Expenditures
LiberalTatiana Auguste23,35238.741+9.37$29,829.08
Bloc QuébécoisNathalie Sinclair-Desgagné23,35138.739−2.66$48,740.91
ConservativeAdrienne Charles10,96118.18+7.73$7,308.70
New DemocraticMaxime Beaudoin1,5562.58−4.07$297.98
GreenBenjamin Rankin6301.05−0.38$0.00
People'sMaria Cantore4280.71−1.97$1,073.47
Total valid votes 60,27898.63+0.88$135,341.20
Total rejected ballots 8401.37–0.88
Turnout 61,11867.93+1.74
Eligible voters 89,966
Liberal notional gain from Bloc Québécois Swing +6.02
Source: Elections Canada[18][19]
Notes: Results were annulled by the Supreme Court of Canada on February 13, 2026.[20] The results were also subject to an automatic judicial recount on May 7, 2025.[21] The number of eligible voters does not include election day registrations.

References

  1. ↑ Morasse, Marie-Eve; Crête, Mylène (May 1, 2025). "Terrebonne toujours dans l'attente" [Terrebonne still waiting]. La Presse (in Canadian French). Archived from the original on May 1, 2025. Retrieved May 10, 2025.
  2. ↑ "Canada: Née en Haïti, Tatiana Auguste a failli devenir la plus jeune députée élue de la 45e législature". Rezo Nòdwès (in French). May 4, 2025. Archived from the original on June 26, 2025. Retrieved June 26, 2025.
  3. ↑ "Tatiana Auguste". Liberal Party of Canada. Archived from the original on May 1, 2025. Retrieved May 10, 2025.
  4. ↑ "forty-fifth general election 2025".
  5. ↑ "Bloc Québécois wins Terrebonne riding after vote validation". CityNews Montreal. May 1, 2025. Retrieved May 10, 2025.
  6. ↑ Zimonjic, Peter (April 29, 2025). "Why a minority Liberal government took so long to call".
  7. ↑ Lopez Steven, Benjamin (May 10, 2025). "Quebec riding of Terrebonne flips to Liberals after recount shows candidate won by single vote". CBC News. Archived from the original on May 10, 2025. Retrieved May 10, 2025.
  8. ↑ Major, Darren; Godmere, Emma (May 3, 2025). "For the first time, MPs born in the 21st century are headed to the Hill". CBC News. Retrieved May 10, 2025.
  9. ↑ Izri, Touria (May 12, 2025). "Liberal MP celebrates 'rollercoaster' win, flipping Quebec seat by one vote". Global News. Archived from the original on May 12, 2025. Retrieved May 12, 2025.
  10. ↑ Lau, Rachel; Lofaro, Joe (May 14, 2025). "Terrebonne resident has ballot rejected after Elections Canada error, Liberals win by 1 vote". CTV News. Archived from the original on May 14, 2025. Retrieved May 15, 2025.
  11. ↑ Cabrera, Holly (May 15, 2025). "Bloc Québcois contesting recount in Terrebonne, after 5 more ballot issues declared in riding". CBC News. Retrieved May 15, 2025.
  12. ↑ Banerjee, Sidhartha (October 27, 2025). "Court rules against challenge by Bloc Québécois candidate who lost by one vote". The Gazette. The Canadian Press. Retrieved February 13, 2026.
  13. ↑ MacDiarmid, Campbell (November 3, 2025). "Bloc Québécois candidate who lost by 1 vote plans appeal to Supreme Court". CBC News.
  14. ↑ Proulx, Boris (November 3, 2025). "La candidate bloquiste défaite par une voix dans Terrebonne part en Cour suprême" [The Bloc candidate defeated by one vote is going to the Supreme Court]. Le Devoir (in French).
  15. ↑ "Supreme Court cancels result from federal election in Terrebonne riding". CTVNews. February 13, 2026. Retrieved February 13, 2026.
  16. ↑ Major, Darren (February 13, 2026). "Supreme Court nullifies Liberal single-vote election win in Montreal-area riding". CBC News. Retrieved February 13, 2026.
  17. ↑ Wilson, Jack (April 13, 2026). "Federal byelection results: Liberals get their majority, and a tight win in Terrebonne". The Gazette. Montreal, Quebec. Retrieved April 14, 2026.
  18. ↑ "Voter information service". Elections Canada. Retrieved May 11, 2025.
  19. ↑ "Official Voting Results". Elections Canada. Retrieved March 18, 2026.
  20. ↑ Major, Darren (February 13, 2026). "Supreme Court nullifies Liberal single-vote election win in Montreal-area riding". CBC News.
  21. ↑ Lopez Stephen, Benjamin (May 10, 2025). "Quebec riding of Terrebonne flips to Liberals after recount shows candidate won by single vote". CBC News. Retrieved May 11, 2025.
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