But within 48 hours of their publication, Davis had quit, saying she had already given too much away to the European Union, and Johnson followed. The Speaker rebuked new Brexit Secretary Dominic Raab, saying it was "most regrettable" that journalists had been briefed on the contents of the document yesterday morning, before MPs had a chance to look at a copy.
Theresa May faces a mortal threat to her leadership of the Conservative Party and Government today.
However, German Finance Minister Olaf Scholz said there was no question of having outside legislators deciding on European Union financial services rules after Brexit. "The trouble is that I have practised the words over the weekend and find they stick in the throat", he wrote to May.
Tory digital minister Matt Hancock - known for his self-branded social networking app - will now takeover Hunt's portfolio as Health Secretary.
May met with Conservative lawmakers in a packed room at Parliament, in a bid to calm the feverish atmosphere in the deeply divided party.
When asked whether May would contest any vote on a confidence motion in her leadership, her spokesman said: "Yes".
May's government is trying to satisfy Britons who voted for their country to leave the bloc, but to set an independent course without hobbling businesses, security agencies and other sectors that are closely entwined with the EU.
Despite new United Kingdom proposals to stay close to the bloc on trade and regulations, European officials remain extremely negative on the prospects of a deal, according to the person, who asked not to be identified as contacts with business are happening in private.
Government unity began to fray within hours. Brexit-supporting lawmakers were angered by the proposals, saying they would keep Britain tethered to the bloc and unable to change its rules to strike new trade deals around the world.
In his resignation letter to May, Davis said of May's strategy, "This is a complex area of judgment, and it is possible that you are right and I am wrong".
All eyes are on Foreign Secretary Boris Johnson, who is due to speak at a diplomatic conference later on Monday, and Environment Secretary Michael Gove. The issue of the Irish border remains a stumbling block.
London says it can apply European Union tariffs for imports intended for the European Union and its own tariffs for goods destined for Britain.
Johnson said Britain was destined for a "semi Brexit" if the blueprint agreed by the Cabinet at Chequers on Friday is delivered. Inside it warns readers that a "no-deal" Brexit or fresh elections can no longer be ruled out.
"Theresa May has lost seven cabinet ministers since November", he said.
But May's allies fear more resignations may follow. Steve Baker also resigned as a junior Brexit minister.
Conservative chairman Brandon Lewis said: "Maria Caulfield and Ben Bradley have worked hard since the start of the year to promote women and young people on behalf of the Conservative Party".