A small hardcore of ultra-remain Conservative Members of Parliament voted with Labour to act against no-deal Brexit Wednesday night - an attempt that was seen off by the government - but now former attorney general and anti-Brexit rebel Dominic Grieve has said he would try to bring the government down altogether.
Johnson said that if parliament blocks Brexit completely, "we will reap the whirlwind and we will face mortal retribution from the electorate".
Mark Harper, Andrea Leadsom and Esther McVey dropped out of the race after failing to meet the 17-vote threshold.
Bookmakers Ladbrokes have slashed their odds of Boris Johnson replacing Theresa May as Prime Minister to 1/5, while Betfair is now offering odds-on at 2/7 for him to win.
In a joint statement, Jeremy Hunt, Michael Gove, Dominic Raab, Sajid Javid, Matt Hancock and Rory Stewart said the leadership contest was "a critical moment" for both the United Kingdom and the Conservative party.
At the same time, members of the Conservative Party will receive ballot papers allowing them to choose which of the two names they would prefer as leader.
She stepped down as the centre-right party's leader on Friday, having failed to deliver her plan for taking Britain out of the European Union after almost three years in the post.
In an interview with Sky News, Stewart was asked to respond to suggestions that Johnson, the former foreign secretary, would go ahead with such a drastic course of action to resolve Brexit.
Google rolls out new Material Play Store interface with bottom navigation bar
In light of these, the company seems to be making all of these changes to make its platform more friendly toward young users. If you're not yet seeing the new design, make sure you have version 15.1.24 of the app or download it from APKMirror .
Corn, soybeans fall as weather allows more USA plantings
United States weather firm Maxar said dry weather across the heart of the corn belt was favourable for planting yet to be done. IN farmers made a lot of progress this past week in crop planting even as constant spring rains leave them far behind normal.
Eden Hazard transfer: Courtois welcomes Belgium team-mate to Real Madrid
However, Thibaut Courtois felt his signing was a coup and would "make the difference" next season. Hazard is off to Real Madrid for a fee which could rise to 130 million with add-ons.
They are both among the seven who will go through to the second MPs' ballot next Tuesday when they will need 33 votes to go through to the next round of voting.
But Thursday's voting revealed each candidate's current level of support. The result is expected in late July.
Hancock and Stewart are against leaving on no-deal terms in any eventuality.
"If we get to a point where a prime minister is intent on [leaving the European Union without a deal], the only way of stopping that prime minister would be to bring down that prime minister's government".
Home Secretary Sajid Javid launched his campaign on Wednesday, pledging to get a revised version of May's deal through parliament by October 31.
But Mr Johnson has also threatened to withhold the UK's £39billion "divorce" payment for leaving the European Union until the European Union agrees better terms for the deal. "That is why we are committed to taking part in the Channel 4 televised debates this Sunday and the BBC programme next Tuesday".
The final pair will then be put to a vote of members of the wider Conservative Party from 22 June, with the victor expected to be announced about four weeks later.