Stephen Pinsonneault (PC) won Lambton—Kent—Middlesex in the February 27, 2025 Ontario general election with 53.6% of the vote, 12,900 votes (27.3 points) ahead of Cathy Burghardt-Jesson (LIB). 47,239 valid votes were counted.
Stephen Pinsonneault
Elected for Progressive Conservative
12,900 voteswinning margin (27.3 points)
Stephen Pinsonneault 53.6%Cathy Burghardt-Jesson 26.2%Kathryn Shailer 12.2%Andy Fisher 4.4%
Results by candidate
Lambton—Kent—Middlesex 2025 results by candidate
Candidate
Party
Votes
Share
Stephen Pinsonneaultelected
Progressive Conservative
25,297
53.6%
Cathy Burghardt-Jesson
Liberal
12,397
26.2%
Kathryn Shailer
New Democratic
5,775
12.2%
Andy Fisher
New Blue
2,093
4.4%
Andraena Tilgner
Green
1,677
3.6%
Source: Elections Ontario, Official Return from the Records for the 2025 general election, and 2022 electoral district boundaries.
How it compares
The 106th-closest race of 124 ridings: a margin of 12,900 votes (27.3 points).
Progressive Conservative candidates won 43% of the vote across Ontario; Stephen Pinsonneault took 53.6% here, 10.6 points above that.
Progressive Conservative also won this riding at the previous election.