Jacob Rees Mogg said pro-Europeans moving against the Prime Minister should "be careful what they wish for" in an interview with GB News.
The Minister for Brexit Opportunities and Government Efficiency spoke to presenters Patrick Christys and Mercy Muroki.
He stated that the Conservative Party will struggle to find another candidate who is a "bigger vote winner as Boris Johnson has proved himself to be".
He added: "Only Boris Johnson, after all, as mayor has been able to win in London which has consistently been a non-Conservative city in recent years and decades."
MP Jacob Rees Mogg warned pro-Europeans to be careful for what they wish for
GB NEWS
Mr Johnson is facing a vote of no confidence elicited by Tory MPs this evening, following rising anger across the party at the disclosures over lockdown parties in Downing Street.
Mr Rees Mogg also warned pro-European critics, stating: "Those who aren't in support of him should remember that the Conservative Party in the country has always voted for the most Eurosceptic candidate when it gets a vote.
"So those pro-Europeans who are so strongly against him might want to be careful for what they wish for."
The Minister for Brexit Opportunities and Government Efficiency has been vocal about his backing for Mr Johnson, claiming the booing the PM received outside St Paul's was "muted noise" and a "mere bagatelle".
Sir Graham Brady, Chairman of the backbench 1922 Committee, confirmed he has now received the 54 letters from Conservative MPs needed to trigger a vote.
The vote will be conducted in secret at Westminster on Monday between 6pm and 8pm, with the count to take place immediately afterwards.
It follows a steady stream of Conservative MPs called publicly for the Prime Minister to stand down in the wake of Sue Gray’s report into breaches of the Covid regulations in No 10 and Whitehall.