Mayor Gérald Tremblay's Montreal Island Citizens Union (MICU) won a majority government in this election, and Primeau served as a member of the official opposition.
In late 2006, he spoke against a proposal to rename Montreal's Parc Avenue after former Quebec premier Robert Bourassa.
[6] Labonté ultimately resigned as Vision Montreal leader in June 2009 and was replaced by Louise Harel.
According to a report in the Montreal Gazette, Primeau succeeded to the position of opposition leader and served for a brief term in late 2009 before resigning in favour of Louise Harel.
Tremblay's party, now renamed as Union Montreal, was re-elected with another majority, and Primeau continued to serve in opposition.