Laura Osman, Maura Forrest, Steve Lambert and Michel Saba, The Canadian Press

Prime Minister Justin Trudeau has suffered another devastating byelection blow with the loss of a second Liberal stronghold, this one to the Bloc Québécois in LaSalle—Émard—Verdun.

Voters went to the polls Monday in the Montreal riding as well as in Winnipeg's Elmwood—Transcona, where the NDP retained its long-held seat after a tough race against the Conservatives.

Trudeau already faced calls from party faithful to resign as leader after unexpectedly losing Toronto—St. Paul’s to the Conservatives in a byelection this past June.

The New Democrats have declared a federal byelection victory in their Winnipeg stronghold riding of Elmwood—Transcona.

The NDP candidate Leila Dance told supporters in a tearful speech that even though the final results weren't in, she expected she would see them in Ottawa.

With several polls still to be counted, Conservative candidate Colin Reynolds conceded defeat and told his volunteers that they should be proud of what the Conservatives accomplished in the campaign.