Voters denied him the expanded bloc of power he was seeking in Parliament, according to Canadian broadcasters.
Erin O’Toole, the Conservative Party leader, has brought his party into a statistical tie in polls with the Liberals.
Protesters have harassed health care workers in three provinces, as well as politicians.
Canada’s government has backed the pipeline owner in the dispute with Michigan’s governor, an ally of President Biden, complicating U.S.-Canadian relations.
It was not immediately clear what sanctions, if any, Sébastien Lemire would face after he acknowledged taking a nude photo of William Amos during a Zoom call.
Under Erin O’Toole, defeating the Liberal government may involve shifting Conservative Party policies.
The party, which has struggled to respond to Prime Minister Justin Trudeau’s liberal platform and personal popularity, hopes the new leader, Erin O’Toole, can change that.