Three Liberal MPs take seats in House after byelections, boosting government majority

Three newly elected Liberal members of Parliament formally took their seats in the House of Commons on Monday following recent byelections that strengthened the governing party’s position.

Doly Begum, Danielle Martin and Tatiana Auguste were sworn in as MPs on Saturday, according to official parliamentary records. Their arrivals bring the Liberals to 174 seats in the House, reflecting gains from both the byelections and a series of defections over recent months.

Begum and Martin won Toronto-area ridings previously held by former cabinet ministers Bill Blair and Chrystia Freeland. Auguste secured the Quebec riding of Terrebonne in a rematch vote after the Supreme Court of Canada invalidated the results of the April 2025 election in that constituency.

The increase in Liberal seats comes after five MPs crossed the floor to join the governing caucus within the past six months, a shift that has contributed to the party’s majority standing.

Meanwhile, New Democratic Party MP Alexandre Boulerice is expected to announce his resignation to pursue provincial politics, which would reduce the NDP caucus to five members if confirmed.