Kristina Tesser Derksen

Kristina Tesser Derksen
MP
Tesser Derksen in 2026
Member of Parliament
for Milton East—Halton Hills South
Incumbent
Assumed office
April 28, 2025
Preceded byRiding Established
Town of Milton Ward 1 Councillor
In office
2018–2025
Preceded byCindy Lunau
Succeeded byGeorge Minakakis
Personal details
Born1978 or 1979 (age 47–48)
Milton, Ontario, Canada
PartyLiberal
Children4
Websitempkristinatd.ca

Kristina Tesser Derksen (born 1978 or 1979) is a Canadian lawyer and politician who was elected as the member of Parliament for Milton East—Halton Hills South in the 2025 Canadian federal election as a member of the Liberal Party. She previously served two terms as a Milton town councillor.

Background

Tesser Derksen was born in 1978 or 1979 in Milton, Ontario, where she grew up.[1][2] She earned an undergraduate degree in history and political science before earning a law degree from the University of Toronto.[1]

Political career

Tesser Derksen was first elected to Milton Town Council representing Ward 1 in 2018 and was re-elected in 2022.[3]

In the 2025 Ontario provincial election, Tesser Derksen ran as the Ontario Liberal Party candidate for the riding of Milton. She was defeated by Progressive Conservative incumbent Zee Hamid.[4]

In the 2025 federal election, Tesser Derksen ran as the Liberal candidate for the newly established riding of Milton East—Halton Hills South.[5] Initially declared defeated, a subsequent validation process confirmed her victory by a margin of 29 votes over Conservative candidate Parm Gill. Because of the narrow margin, a judicial recount was automatically triggered.[6][7] Following a three-day recount, her victory was confirmed with a revised margin of 21 votes.[8] Her seat on the Milton council was declared vacant on May 26.[9]

Personal life

Tesser Derksen’s husband, Chris Derksen, is a small business owner. They were married in 1998 and have four children.[10]

Electoral record

2025 Canadian federal election: Milton East—Halton Hills South
Party Candidate Votes%±%Expenditures
LiberalKristina Tesser Derksen32,17848.25+6.54$128,386.69
ConservativeParm Gill32,15748.22+6.97$132,146.27
New DemocraticMuhammad Riaz Sahi1,0291.54–8.03$0.00
GreenSusan Doyle6721.01–1.59$0.00
People'sWalter J. Hofman4750.71–4.17$9,990.04
IndependentShahbaz Mahmood Khan1740.26N/A$2,739.15
Total valid votes/expense limit 66,68599.51–$135,890.29
Total rejected ballots 3280.49
Turnout 67,01374.18
Eligible voters 90,340
Liberal notional hold Swing –0.21
Source: Elections Canada[11][12]
Notes: This riding's results were subject to an automatic judicial recount on May 9, 2025.[13] Number of eligible voters does not include election day registrations.
2025 Ontario general election
Party Candidate Votes%±%
Progressive ConservativeZee Hamid20,09147.43+0.39
LiberalKristina Tesser Derksen17,55141.44+3.19
New DemocraticKatherine Cirlincione2,4035.67–1.09
GreenSusan Doyle1,1302.67–0.09
New BlueJohn Spina8662.04–1.98
CentristMohsin Rizvi3160.75N/A
Total valid votes/expense limit 42,35799.45–0.29
Total rejected, unmarked, and declined ballots 2350.55+0.29
Turnout 42,59242.45+14.73
Eligible voters 100,342
Progressive Conservative hold Swing –1.40
Source: Elections Ontario[14][15]

References

  1. 1 2 Adnan, Imran (October 10, 2022). "Kristina Tesser Derksen- Ward 1 candidate (Municipal)". Milton Reporter. Retrieved May 2, 2025.
  2. ↑ LeBlanc, Steve (February 2, 2025). "'Right time to step forward': Milton councillor feels 'called' to represent Liberals in provincial election". Milton Today. Milton, Ontario. Retrieved September 4, 2025.
  3. ↑ "Meet Your Candidate: Kristina Tesser Derksen running for Liberals in Milton East-Halton Hills South". Halton Hills Today. April 7, 2025. Retrieved May 2, 2025.
  4. ↑ LeBlanc, Steve (February 27, 2025). "'I feel satisfied': Liberal MPP hopeful reflects positively on election campaign". Milton Today. Milton, Ontario. Retrieved May 5, 2025.
  5. ↑ "Canada election: Ontario riding flips to Liberals after validation process | Globalnews.ca". Global News. Retrieved May 5, 2025.
  6. ↑ Morrison, Catherine (May 2, 2025). "Milton East–Halton Hills South riding flips to Liberals after validation process". The Canadian Press. Toronto, Ontario: Toronto Star. Retrieved May 2, 2025.
  7. ↑ Major, Darren (May 2, 2025). "Liberal minority back up to 169 after Elections Canada validates close Ontario race". CBC News. Retrieved May 2, 2025.
  8. ↑ "Kristina Tesser Derksen the new MP for Milton East-Halton Hills South following judicial recount". Milton Today. Milton, Ontario. May 16, 2025. Retrieved May 16, 2025.
  9. ↑ "Council Declares Ward 1 Council Seat Vacant, Will Hold By-Election". Town of Milton. May 27, 2025. Retrieved September 4, 2025.
  10. ↑ "Biography". Liberal Party of Canada. Archived from the original on May 3, 2025. Retrieved May 2, 2025.
  11. ↑ "Voter information service". Elections Canada. Retrieved May 3, 2025.
  12. ↑ "Election Night Results - Electoral Districts". Elections Canada. Retrieved May 3, 2025.
  13. ↑ Major, Darren (May 2, 2025). "Liberal minority back up to 169 after Elections Canada validates close Ontario race". CBC News. Retrieved May 3, 2025.
  14. ↑ "Milton Unofficial Election Results". Elections Ontario. February 28, 2025. Retrieved February 28, 2025.
  15. ↑ "Vote Totals From Official Tabulation" (PDF). Elections Ontario. March 3, 2025. Retrieved March 4, 2025.
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