Dufour was first elected to
Saguenay City Council in the
2013 municipal elections representing District 8, which covered the former municipality of
Shipshaw. Dufour entered the race for mayor of Sagenuay in February 2021, Dufour also hailed her victory as unifying the amalgamated city, but Simard had the opposite view, claiming her win set the city back 20 years, pitting the city's two main boroughs of Jonquière and
Chicoutimi against each other. Dufour's first year in office was marked by a
landslide in the
La Baie borough of the city, as well as inflation and the lowest growth rate among the province's 10 largest cities. In 2023, Dufour came under scrutiny for a number of different controversies. She refused to comment on why the city's director of legal affairs was suspended without pay before the 2022 Christmas holidays; She was criticized for
outing the sexuality of the director of the Fire Safety Service; The Commission municipale du Québec received complaints against her improperly dismissing Jean-Luc Roberge as director general of the Société de transport du Saguenay; She claimed that she paid for her legal battles during the lawsuit against the city from her time as a councillor, but it was discovered that the city had to pay her legal fees of nearly $25,000; And, former mayor Néron filed a complaint to the
Chief Electoral Officer of Quebec stating that Dufour offered Jean-Marc Crevier a labour relations consultant job if he agreed to not run for mayor in 2021. She was defeated in her bid for re-election in
2025, placing fourth with just over 2 per cent of the vote. ==References==