Erin O'Toole has been voted out as leader by the Conservative caucus, with the final vote at 73 to 45.
Commenters said that the rally was "racist" and likened their actions to those of terrorists.
"These businesses that have been closed for a while now—the restaurants want to reopen. I get it, I hear you, but we have to let the people of Ottawa live their lives."
Jamil Jivani alleges iHeartRadio "executives encouraged on-air talent to decry our country as racist in the lead up to our independence day."
On Tuesday, the Trudeau Liberals refused to give unanimous consent to a Conservative motion condemning the use of blackface.
With the sounds of truck horns whaling in the background, about a dozen protestors are seen on video playing, with several bystanders watching on.
The tax, which would have been between $100 and $800, was set to be tabled this week.
O'Toole "subsequently flip-flop[ped] on the platform promise to repeal the May 2020 Firearms Order-in-Council during the campaign," one MP wrote.
"I will accept the result of this vote. The signers of this letter must accept it, too. They brought it. They’ll have to live with it," he continued.
35 Conservative MPs have signed a letter calling for the leadership review of party boss Erin O'Toole
Conservative MP Candice Bergen and Liberal MP Marco Mendocino exchanged words during the first Question Period since the Holiday break.
"We won’t give in to those who fly racist flags. And we won’t cave to those who engage in vandalism, or dishonour the memory of our veterans," he wrote of the truckers.
The convoy started on Saturday in support of the national freedom uprising that has swept across Canada.
The poll found that 54 percent of those surveyed claimed that all restrictions should be lifted.
"What in the world are you waiting for? It's your moment."