[citation needed] Also a long time worker for the federal Progressive Conservative Party, Tkachuk was appointed to the Senate in June 1993 on the recommendation of Brian Mulroney weeks before his retirement as Prime Minister of Canada.
In March 2005, Conservative leader Stephen Harper appointed Tkachuk to the position of Senate Chair for the party's 2006 election campaign.
[1] Senator David Tkachuk while speaking to the pro-pipeline crowd at Parliament Hill on February 20, 2019, urged the group to "roll over every Liberal left in the country".
Given that 10 people were killed in the terrorist attack in April 2018 in North York after being run over by a van, Member of Parliament for Willowdale Ali Ehsassi released a statement which condemned the Senator for inciting violence against Canadians and demanded that Senator Tkachuk be forced to resign and called for his removal from the Conservative Caucus.
[2] CPC leader Andrew Scheer, who also attended the event, was criticized for failing to take action against Tkachuk, who has refused to apologize and claimed that he was speaking figuratively.