Nathalie Sinclair-Desgagné

Nathalie Sinclair-Desgagné
Member of Parliament
for Terrebonne
In office
September 20, 2021 – April 28, 2025
Preceded byMichel Boudrias
Succeeded byTatiana Auguste
Personal details
Born1988 (age 37–38)
PartyBloc Québécois
OccupationPolitician

Nathalie Sinclair-Desgagné (born 1988) is a Canadian politician who served as the member of Parliament for the riding of Terrebonne in the House of Commons from 2021 to 2025. She is a member of the Bloc Québécois.

Education and early career

Sinclair-Desgagné was born in 1988,[1] the daughter of Bernard Sinclair-Desgagné, an economics professor at HEC Montréal, and Gilda Villaran-Calderon, an immigration lawyer.[2]

Sinclair-Desgagné holds a degree in economics from McGill University and a master's degree from the University of Oxford. Prior to being elected, she served as a senior economic advisor to the general management of the City of Montreal. She has also worked for Deloitte and PwC.[3]

Political career

Sinclair-Desgagné was elected to represent the riding of Terrebonne in the House of Commons in the 2021 federal election as a member of the Bloc Québécois.[4] She served as the critic of public finances, pandemic programs and Canada Economic Development for Quebec Regions in the Bloc Québécois Shadow Cabinet.[5]

In the 2025 federal election, the initial count completed the day after the election showed Sinclair-Desgagné losing her seat to Liberal candidate Tatiana Auguste, but Elections Canada's validation process revised the results, instead giving Sinclair-Desgagné a 44-vote victory. Because of the narrow margin, a judicial recount was automatically triggered.[6][7] The recount, completed on May 10, flipped the result again, confirming Auguste as the victor by a margin of a single vote.[8][9]

Sinclair-Desgagné said she would contest the result after a Bloc voter disclosed that her mail-in ballot had been returned to her due to a postal code misprint on the envelope provided by Elections Canada.[10] After Elections Canada said that it did not have legal standing to change the result, the Bloc 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 until a federal by-election could be held.[15]

Electoral record

2025 Canadian federal election: Terrebonne
Party Candidate Votes % ±%
Liberal Tatiana Auguste 23,352 38.741 +9.37
Bloc Québécois Nathalie Sinclair-Desgagné 23,351 38.739 −2.66
Conservative Adrienne Charles 10,961 18.18 +7.73
New Democratic Maxime Beaudoin 1,556 2.58 −4.07
Green Benjamin Rankin 630 1.05 −0.38
People's Maria Cantore 428 0.71 −1.97
Total valid votes 60,278 98.63
Total rejected ballots 840 1.37 -0.88
Turnout 61,118 67.93 +1.74
Eligible voters 89,966
Liberal notional gain from Bloc Québécois Swing +6.02
Source: Elections Canada[16][17]
Notes: Results were annulled by the Supreme Court of Canada on February 13, 2026.[18] The results were also subject to an automatic judicial recount on May 7, 2025.[19] The number of eligible voters does not include election day registrations.
2021 Canadian federal election: Terrebonne
Party Candidate Votes % ±% Expenditures
Bloc Québécois Nathalie Sinclair-Desgagné 24,270 41.2 -9.4 $28,625.35
Liberal Eric Forget 17,475 29.6 +0.3 $6,336.80
Conservative Frédérick Desjardins 6,183 10.5 +2.9 $8,029.08
New Democratic Luke Mayba 3,913 6.6 -0.9 $7,745.37
Independent Michel Boudrias 3,864 6.6 N/A $16,574.97
People's Louis Stinziani 1,594 2.7 +2.0 $0.00
Green Dave Hamelin-Schuilenburg 847 2.4 -2.3 $103.94
Free Nathan Fortin-Dubé 803 1.4 N/A $25.71
Total valid votes/expense limit 58,949 97.8 $119,339.41
Total rejected ballots 1,355 2.2
Turnout 60,304 66.4
Eligible voters 90,835
Bloc Québécois hold Swing -4.9
Source: Elections Canada[20]
Notes: The incumbent MP, Michel Boudrias, was not renominated as the candidate for the Bloc Quebecois, and subsequently ran as an Independent[21]

References

  1. ^ "Nathalie Sinclair-Desgagné, M.P." Parlinfo. Parliament of Canada. Retrieved February 15, 2026.
  2. ^ Langlois, Sophie (November 17, 2021). "Économiste, maman et députée indépendantiste à Ottawa" [Economist, mother, and sovereigntist MP in Ottawa]. Radio Canada (in Canadian French). Retrieved February 15, 2026.
  3. ^ "Nathalie Sinclair-Desgagné veut porter les couleurs du Bloc dans Terrebonne".
  4. ^ "Nathalie Sinclair-Desgagné élue dans Terrebonne". Monjoliete. September 21, 2021. Retrieved September 22, 2021.
  5. ^ Lévesque, Catherine (October 5, 2021). "Bloc Québécois announces shadow cabinet". Montreal Gazette.
  6. ^ Major, Darren (May 1, 2025). "Liberals lose closely contested seat to Bloc Québécois after vote validation". CBC News. Retrieved May 1, 2025.
  7. ^ Pirro, Raphaël (May 1, 2025). "Le Bloc Québécois remporte Terrebonne après une vérification d'Élections Canada" [Bloc Québécois wins Terrebonne after Elections Canada validation]. TVA Nouvelles (in Canadian French). Retrieved May 1, 2025.
  8. ^ Lopez Steven, Benjamin (May 10, 2025). "Quebec riding of Terrebonne flips to Liberals after recount shows candidate won by single vote". CBC News. Retrieved May 10, 2025.
  9. ^ "Canada's Liberal Party wins one more seat after Quebec recount". BBC News. May 11, 2025. Retrieved May 13, 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. ^ "Voter information service". Elections Canada. Retrieved May 11, 2025.
  17. ^ "Official Voting Results". Elections Canada. Retrieved March 18, 2026.
  18. ^ Major, Darren (February 13, 2026). "Supreme Court nullifies Liberal single-vote election win in Montreal-area riding". CBC News.
  19. ^ 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.
  20. ^ "List of confirmed candidates – September 20, 2021 Federal Election". Elections Canada. Retrieved September 2, 2021.
  21. ^ https://www.ctvnews.ca/montreal/article/as-bloc-prepares-for-federal-election-infighting-grows-over-candidate-selection-process/