"It has been an enormous privilege to serve in this role, but I regret that I can no longer continue in good conscience," Javid wrote on Twitter.
Sunak submitted his resignation letter and tweeted that the government should "be conducted properly, competently and seriously."
"I recognise this may be my last ministerial job, but I believe these standards are worth fighting for and that is why I am resigning."
Both Javid and Sunak have noted that they were unsatisfied with how Johnson's government handled scandals, including Downing Street confirming that the prime minister was aware of the allegations against Pincher in 2019 - despite him denying it.
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