Community activist and physician Amir Khadir has been elected in the Montreal riding of Mercier, beating Parti Québécois incumbent Daniel Turp.
Khadir, a Québec Solidaire candidate, was declared the winner in Mercier shortly after 10 p.m. after a tight race with Turp, a lawyer and experienced politician.
The physician's victory is the first for the upstart sovereigntist party.
"We have to say it – this victory wasn't given to us," Khadir told a crowd of supporters gathered at the Medley, a nightclub in Montreal's Latin Quarter. "It gives us hope that another Quebec is possible."
QS enjoyed several high-profile endorsements in this campaign, including from Montreal constitutional lawyer Julius Grey; Claude Béland, former president of financial group Mouvement Desjardins; and singer Dan Bigras.
Turp, a law professor, was elected to Quebec's provincial legislature in 2003 after sitting as a Bloc Québécois MP from 1996 to 2000.
In 2007 Turp beat Khadir by 1,123 votes.