Jacob Rees-Mogg, a doggedly loyal cabinet ally, dismissed the resignations as “little local difficulties”.
“Losing chancellors is something that happens,” he said on Sky News, pointing to past Tory leaders – although Margaret Thatcher was ultimately felled by a cabinet revolt by top allies.
Sunak’s departure in particular, in the middle of policy differences over a cost-of-living crisis sweeping Britain, is dismal news for Johnson.
The chancellor of the exchequer said “the public rightly expect government to be conducted properly, competently and seriously”.
“I believe these standards are worth fighting for and that is why I am resigning,” Sunak wrote to Johnson.
Javid preceded Sunak at the Treasury before quitting over a prior bust-up with Johnson.
He wrote that the prime minister’s survival in last month’s no-confidence vote gave him the opportunity to show “humility, grip and new direction”.
“I regret to say, however, that it is clear to me that this situation will not change under your leadership — and you have therefore lost my confidence too.”
Johnson has been embroiled in various scandals, above all the so-called “Partygate” affair, which saw him receive a police fine for breaking his own coronavirus lockdown restrictions in Downing Street.
The 58-year-old premier still faces a parliamentary probe into whether he lied to MPs over the lockdown-breaching parties in Downing Street.
Pincher’s departure from the whips’ office – charged with enforcing party discipline and standards – marked yet another allegation of sexual misconduct by Tories in recent months.
Conservative MP Neil Parish resigned in April after he was caught watching pornography on his mobile phone in the House of Commons.
That prompted a by-election in his previously safe seat, which the party went on to lose in a historic victory for the opposition Liberal Democrats.
Labour, the main opposition party, defeated the Conservatives in another by-election in northern England on the same day, prompted by the conviction of its Tory MP for sexual assault.
The controversies have come with Britain battling the worsening cost-of-living crisis and a summer of strikes by various unions over wages and working conditions.
Labour leader Keir Starmer said it was “clear that this government is now collapsing”.