A fourth MP of the current Canadian parliament has defected to join the Liberals, bringing Prime Minister Mark Carney closer to a majority in the House of Commons.
Lori Idlout, a member of the left-leaning New Democrats (NDP), is joining the governing party. In a statement issued by the Liberals, she said she had undergone "much personal reflection and encouragement from my community, family, and supporters".
Interim NDP leader Don Davies said he was "very disappointed", adding: "We believe that when someone rejects the decision of their electors and wants to join another party, they should put that decision to their voters."
The Liberals said they were "deeply excited to welcome" Idlout.
Idlout was first elected as an MP from the Canadian terriotry of Nunavut in 2021.
Carney, who leads a minority government, has been closing in on a majority in recent months - largely helped by recent defections by three former Conservative members of parliament.
In February, Matt Jeneroux, a Conservative from Edmonton, joined the Liberal caucus. Two other Conservative MPs, Chris d'Entremont of Nova Scotia and Michael Ma of Ontario, had crossed the floor late last year to join Carney's government.
Opposition Conservatives have accused the Liberals of using "pressure tactics" on their members.
Over the weekend, Carney also announced three by-elections on 13 April - races that could secure the Liberals the majority government that they crave.
Two of the by-elections will be held in Toronto, in constituencies that are considered Liberal strongholds. The third will be a closely-watched contest in Montreal that his party won by just one vote in the last election - a result that was nullified by the Supreme Court.
If the Liberals win all three seats in April, following the addition of Idlout, they would secure 173 seats in the House of Commons, allowing the prime minister to likely avoid an election for three more years.
In the federal election a year ago, the NDP won just seven seats after losing significant vote share to rival parties.
The NDP will vote for a new leader later this month.
