The Political RecordFederal electoral districtsNo. 35118Ontario

Windsor—Tecumseh—Lakeshore

Name: 2025 Canadian federal election in Windsor—Tecumseh—Lakeshore
Start: 2025-04-28
End: 2025-04-28

Windsor—Tecumseh—Lakeshore is a federal riding in Ontario. Kathy Borrelli (Conservative) has represented Windsor—Tecumseh—Lakeshore since the 2025 election. Kathy Borrelli (Conservative) took Windsor—Tecumseh—Lakeshore from the Liberals in the 2025 election by 4 votes (0.1 points), with 45.8% of the vote. Irek Kusmierczyk (Liberal) was second with 45.7%, on a turnout of 66.5% of 106,151 electors. Member as of 2026-11-01.

Fig. 1 — Windsor—Tecumseh—Lakeshore on the board, 2023 boundaries; the ridings next door as the House holds them on 2026-11-01. Open it on the board →

Who represents Windsor—Tecumseh—Lakeshore

Kathy Borrelli's piece from the board. Illustration after the official portrait © House of Commons.

Kathy Borrelli

Member of Parliament for Windsor—Tecumseh—Lakeshore

Conservative

MP since 2025-04-28 · first term

Industry and Technology committee

41 speeches in the 45th Parliament, most often on Automotive Industry.

Contact and office · House of Commons →

The 2025 result: Conservative gain from the Liberals

Share of the valid votes by candidate, Windsor—Tecumseh—Lakeshore, April 28, 2025

Shares of the 70,138 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.

The figures

Candidate	Party	Votes	Share
Kathy Borrelli	Conservative	32,090	45.8%
Irek Kusmierczyk	Liberal	32,086	45.7%
Alex Ilijoski	New Democratic	4,240	6.0%
Nick Babic	People's Party	828	1.2%
Others (3)		894	1.3%

Kathy Borrelli (Conservative) won Windsor—Tecumseh—Lakeshore on April 28, 2025 with 32,090 votes, 45.8% of the 70,138 valid votes. Irek Kusmierczyk (Liberal) was second with 32,086 (45.7%), 4 votes and 0.1 points behind.

Of the 70,138 valid votes, Kathy Borrelli (Conservative) took 45.8%, Irek Kusmierczyk (Liberal) 45.7%, Alex Ilijoski (New Democratic) 6.0% and Nick Babic (People's Party) 1.2%; the 3 other candidates took 1.3% together. Turnout was 66.5% of 106,151 electors: 70,596 ballots cast, 70,138 of them valid, for 7 candidates.

Since 2021

Against the 2021 result on these boundaries, the Conservatives are up 19.0 (26.8% to 45.8%), the Liberals up 15.1 (30.6% to 45.7%), the New Democrats down 24.0 (30.0% to 6.0%) and the People's Party down 9.0 (10.2% to 1.2%), in points of the valid votes.

2021 is Elections Canada's transposition of that election onto the 2023 boundaries, not an election held on these lines.

Since 2004: no party has held it

The party first in Windsor—Tecumseh—Lakeshore at each general election, 2004 to 2025, on today's boundaries

2004New Democratic41.0%by 7.0 points over the Liberals
2006New Democratic43.5%by 16.7 points over the Liberals
2008New Democratic47.6%by 22.8 points over the Conservatives
2011New Democratic49.2%by 14.9 points over the Conservatives
2015New Democratic43.4%by 15.3 points over the Conservatives
2019†New Democratic32.5%by less than 0.1 points over the Liberals
2021changed handsLiberal30.6%by 0.6 points over the New Democrats
2025changed handsConservative45.8%by 0.1 points over the Liberals

Each election carried onto today's boundaries by where the riding's 2025 electors lived: our estimate to 2019, Elections Canada's transposition for 2021, the official result for 2025. Parties are counted as they ran. † The first two are within two points, so which party was first is less certain.

The figures

Year	First	Share	Second	Margin (pts)	Basis
2004	New Democratic	41.0%	Liberal	7.0	carried, our estimate
2006	New Democratic	43.5%	Liberal	16.7	carried, our estimate
2008	New Democratic	47.6%	Conservative	22.8	carried, our estimate
2011	New Democratic	49.2%	Conservative	14.9	carried, our estimate
2015	New Democratic	43.4%	Conservative	15.3	carried, our estimate
2019†	New Democratic	32.5%	Liberal	0.0	carried, our estimate
2021	Liberal	30.6%	New Democratic	0.6	transposed by Elections Canada
2025	Conservative	45.8%	Liberal	0.1	official result

The NDP were first at six of the eight general elections from 2004 to 2025, the Liberals at one and the Conservatives at one; it changed hands twice. In 2025 the Conservatives took 45.8% of the vote here, 18.7 points above their average of 27.1% at the seven general elections from 2004 to 2021.

On today's boundaries the NDP were first here in 2004 (41.0%), 2006 (43.5%), 2008 (47.6%), 2011 (49.2%), 2015 (43.4%) and 2019 (32.5%), the Liberals in 2021 (30.6%) and the Conservatives in 2025 (45.8%), each with the share of the valid votes shown.

A stronghold is a party first at every general election since 2004, by an average of 20 points or more over the next party; held, first at every one; usually, first at all but one. By-elections are not counted. By this rule 160 of the 343 ridings have no degree. The results before 2021 are carried onto today's boundaries by where the riding's 2025 electors lived: our estimate, from the older boundaries of Taylor, Lucas, Kirby and Hewitt and the results in Sevi's "Who Runs?". 2021 is Elections Canada's transposition, and 2025 the official result. In 2019 the carried top two are within two points, so which party was first is less certain.

Before 2025

2021 Liberal · Irek Kusmierczyk, by 669 votes (1.1 pts)
2019 Liberal · Irek Kusmierczyk, by 629 votes (1.1 pts)
2015 New Democratic · Cheryl Hardcastle, by 8,559 votes (16.0 pts)

In Windsor—Tecumseh on the 2013 boundaries, the riding most of the 2025 electors in today's Windsor—Tecumseh—Lakeshore lived in; Elections Canada's official results.

What kind of place Windsor—Tecumseh—Lakeshore is

Population: 130,9602021 census
Area: 310km²
Density: 423people per km²
Electors: 106,151on the 2025 lists

Distinctions · ranked against all 343 ridings

2nd-closest race in Canada
Won by 4 votes (0.1 pts) · 2nd of 343
6th-most populous in Canada
130,960 people, 2021 census · 6th of 343
Changed hands in 2025
One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (21 of 122 in Ontario)

Median age is 44.0 — a little higher than the median riding's 41.6.
highestlowest97th highest of 343
Share with French as a mother tongue is 2.6% — about 1.6 times the median riding's 1.6%.
highestlowest126th highest of 343
Share who are immigrants is 24.2% — about 1.4 times the median riding's 17.3%.
highestlowest131st highest of 343
Median total household income is $79,000 — a little lower than the median riding's $84,000.
highestlowest136th lowest of 343
Share aged 25-64 with a bachelor's degree or higher is 26.9% — a little lower than the median riding's 28.2%.
highestlowest163rd lowest of 343
Share of households that own their home is 71.6% — about the same as the median riding's 71.4%.
highestlowest165th highest of 343

2021 Census on the 2023 boundaries; each rule places this riding among all 343. Density is the census population over the riding's area.

IDid this riding change?

Yes. 93% of the 2025 electors in today's Windsor—Tecumseh—Lakeshore lived in the old Windsor—Tecumseh; by area, 39% of the riding came from other ridings.

Share of today's electorsFormer riding

93.4%Windsor—Tecumseh 61.2% of the area

6.6%Essex 35.6% of the area · 5% of it kept

How this is measured. Electors: the share of the current riding's 2025 ordinary-list electors who lived in each former riding, each 2025 polling division placed in the 2013 riding a point inside it falls in. Area: the share of the current riding's area that came from each former riding, by intersecting the 2013 and 2023 boundary files, and how much of the former riding that part was. Area is land, not population. Elections Canada counts 48 of 343 ridings as entirely unchanged.

IIThe 2025 result

Candidate	Party	Votes	%	2021	±
Kathy Borrelli	Conservative	32,090	45.8%	26.8%	+19.0
Irek Kusmierczyk	Liberal	32,086	45.7%	30.6%	+15.1
Alex Ilijoski	New Democratic	4,240	6.0%	30.0%	−24.0
Nick Babic	People's	828	1.2%	10.2%	−9.0

3 further candidates, each under 1% of the vote

Roxanne Tellier	Green	468	0.7%
Helmi Charif	Other	223	0.3%
Beth St Denis	Other	203	0.3%

The 2021 column is Elections Canada's official transposition of the 2021 result onto these 2023 boundaries. ± is the change in each party's share. It is not "swing": with four or more competitive parties there is no single pair to swing between.

IIIHow close was it, really

Third place vs. the margin

4,240 votes

New Democratic took more than the 4-vote margin. True in 100 of 343 ridings in 2025.

Election-day polls won by others

77 of 250

3 polls ended in an exact tie.

Fig. 2 — Each square is one election-day poll: ■ won by the Conservatives (170) · ■ won by another party (77) · ▨ tied (3).

Flip the seatHypothetical

It would have taken 3 voters switching from Conservative to Liberal — 0.00% of the 70,138 valid votes, 0.1 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Voters who switch: 0010

Conservative32,090

Liberal32,086

Still Conservative by 4 votes. Actual margin: 4.

IVElection day versus advance

Only 60.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

On election day the Liberals took 41.3%, the Conservatives 49.1%, the New Democrats 6.7% and the People's Party 1.4%; in advance and special ballots, 52.5%, 40.7%, 5.0% and 0.9%, in that order.

Share of the valid votes by party, election-day polls against advance and special ballots, Windsor—Tecumseh—Lakeshore, April 28, 2025

Shares of the valid votes cast at election-day polls, and of those cast at advance polls, at mobile polls and by special ballot; the gap is the second less the first, in points. Source: Elections Canada, poll-by-poll results, the 2025 general election.

The figures

Party	Election day	Advance and special	Gap
Liberal	41.3%	52.5%	+11.2
Conservative	49.1%	40.7%	−8.4
New Democratic	6.7%	5.0%	−1.7
People's Party	1.4%	0.9%	−0.5

An association, not a cause. Voters who cast ballots before election day differed from those who turned out on the day. It does not say why. There is no poll-level turnout figure on this page: the elector count on a polling division includes people who voted in advance and were counted elsewhere.

VWhere it is

loading basemap…

Fig. 3 — Windsor—Tecumseh—Lakeshore and its 3 neighbouring ridings.

Sources and citation

"Windsor—Tecumseh—Lakeshore — federal riding profile and 2025 results."
The Political Record. https://politicalrecord.ca/riding/windsor-tecumseh-lakeshore/
Accessed 2026-11-10.

Results and transposition: Elections Canada. Boundaries: Elections Canada / Statistics Canada, Open Government Licence – Canada. Census: Statistics Canada 2021 Census. Member: House of Commons.

Figures reconcile to the certified national total of 19,641,663 votes. The member is as the House of Commons listed them on 2026-11-01. Page built 2026-11-10.