<p>Former Brexit negotiator David Frost on Saturday resigned from the government with immediate effect, topping a torrid week for British Prime Minister Boris Johnson after a party rebellion on new coronavirus curbs and by-election humiliation.</p>.<p>Frost, a trusted ally of the prime minister, sent his resignation letter following reports that he was to leave his post in January.</p>.<p>"It is disappointing that this plan has become public this evening and in the circumstances I think it is right for me to write to step down with immediate effect," he said in the letter, published by Johnson's Downing Street office.</p>.<p>Frost told Johnson he had "concerns about the current direction of travel" regarding coronavirus regulations and tax rises.</p>.<p>Johnson responded that he was "very sorry" to receive the resignation, "given everything you have achieved and contribute to this government".</p>.<p>The Mail on Sunday earlier reported that Frost had handed in his resignation a week ago, but had been persuaded to stay on until the New Year.</p>.<p>Johnson is already reeling from a rebellion by 100 of his MPs in a parliamentary vote over coronavirus measures and the stunning loss of a 23,000-majority seat in a by-election.</p>.<p>That was partly blamed on a slew of reports that his staff and aides had held parties last Christmas despite virus restrictions in place at the time.</p>.<p>The by-election loss for Johnson's Conservatives intensified speculation of a leadership challenge.</p>.<p>Frost recently came 2nd in a poll of most popular ministers held by ConservativeHome, an influential blog read by the grassroot Tories who could end up deciding Johnson's replacement.</p>.<p>The deputy leader of the main opposition Labour party Angela Rayner said the resignation demonstrated "a government in total chaos right when the country faces an uncertain few weeks.</p>.<p>"@BorisJohnson isn't up to the job. We deserve better than this buffoonery," she tweeted.</p>.<p>Conservative MP Andrew Bridgen warned Johnson was "running out of time and out of friends to deliver on the promises and discipline of a true Conservative government.</p>.<p>"Lord Frost has made it clear, 100 Conservative backbenchers have made it clear, but most importantly so did the people of North Shropshire," he wrote on Twitter.</p>.<p>And Arlene Foster, who stepped down as Northern Ireland's first minister because of post-Brexit trading arrangements in the UK province, said it had huge implications.</p>.<p>"The resignation of Lord Frost from the Cabinet is a big moment for the Government but enormous for those of us who believed he would deliver for NI," she wrote on Twitter.</p>.<p>Frost told Johnson in his resignation letter: "I hope we will move as fast as possible to where we need to get to: a lightly regulated, low-tax, entrepreneurial economy.</p>.<p>"We also need to learn to live with Covid and I know that is your instinct too," he said, in apparent reference to the new measures introduced by the government last week.</p>.<p>"You took a brave decision in July, against considerable opposition, to open up the country again. Sadly it did not prove to be irreversible, as I wished, and believe you did too.</p>.<p>"I hope we can get back on track soon and not be tempted by the kind of coercive measures we have seen elsewhere," he added.</p>.<p>Frost had been locked in talks for weeks over the so-called Northern Ireland Protocol, which governs trade between the British mainland of England, Scotland and Wales, and Northern Ireland, and with the European Union.</p>.<p>He was especially focused on revamping the agreement's governance, objecting that the EU's highest court in Luxembourg has power over its implementation.</p>.<p>He seemed to be at odds with his government over the issue earlier in the week, when a government spokesman appeared to suggest there could be some softening on its position on the EU's role as arbiter.</p>.<p>Frost, 56, was appointed as Johnson's so-called EU "sherpa" shortly after the British leader took office in July 2019, and became chief trade negotiator after helping to finalise last year's divorce deal.</p>.<p>A career diplomat with the Foreign Office, his resume features stints in Brussels in the 1990s and as ambassador to Denmark from 2006 to 2008.</p>.<p>More recently, Frost spent nearly three years as chief executive of the Scotch Whisky Association and briefly became chief executive of the London Chamber of Commerce and Industry.</p>.<p><strong>Check out DH's latest videos</strong></p>
<p>Former Brexit negotiator David Frost on Saturday resigned from the government with immediate effect, topping a torrid week for British Prime Minister Boris Johnson after a party rebellion on new coronavirus curbs and by-election humiliation.</p>.<p>Frost, a trusted ally of the prime minister, sent his resignation letter following reports that he was to leave his post in January.</p>.<p>"It is disappointing that this plan has become public this evening and in the circumstances I think it is right for me to write to step down with immediate effect," he said in the letter, published by Johnson's Downing Street office.</p>.<p>Frost told Johnson he had "concerns about the current direction of travel" regarding coronavirus regulations and tax rises.</p>.<p>Johnson responded that he was "very sorry" to receive the resignation, "given everything you have achieved and contribute to this government".</p>.<p>The Mail on Sunday earlier reported that Frost had handed in his resignation a week ago, but had been persuaded to stay on until the New Year.</p>.<p>Johnson is already reeling from a rebellion by 100 of his MPs in a parliamentary vote over coronavirus measures and the stunning loss of a 23,000-majority seat in a by-election.</p>.<p>That was partly blamed on a slew of reports that his staff and aides had held parties last Christmas despite virus restrictions in place at the time.</p>.<p>The by-election loss for Johnson's Conservatives intensified speculation of a leadership challenge.</p>.<p>Frost recently came 2nd in a poll of most popular ministers held by ConservativeHome, an influential blog read by the grassroot Tories who could end up deciding Johnson's replacement.</p>.<p>The deputy leader of the main opposition Labour party Angela Rayner said the resignation demonstrated "a government in total chaos right when the country faces an uncertain few weeks.</p>.<p>"@BorisJohnson isn't up to the job. We deserve better than this buffoonery," she tweeted.</p>.<p>Conservative MP Andrew Bridgen warned Johnson was "running out of time and out of friends to deliver on the promises and discipline of a true Conservative government.</p>.<p>"Lord Frost has made it clear, 100 Conservative backbenchers have made it clear, but most importantly so did the people of North Shropshire," he wrote on Twitter.</p>.<p>And Arlene Foster, who stepped down as Northern Ireland's first minister because of post-Brexit trading arrangements in the UK province, said it had huge implications.</p>.<p>"The resignation of Lord Frost from the Cabinet is a big moment for the Government but enormous for those of us who believed he would deliver for NI," she wrote on Twitter.</p>.<p>Frost told Johnson in his resignation letter: "I hope we will move as fast as possible to where we need to get to: a lightly regulated, low-tax, entrepreneurial economy.</p>.<p>"We also need to learn to live with Covid and I know that is your instinct too," he said, in apparent reference to the new measures introduced by the government last week.</p>.<p>"You took a brave decision in July, against considerable opposition, to open up the country again. Sadly it did not prove to be irreversible, as I wished, and believe you did too.</p>.<p>"I hope we can get back on track soon and not be tempted by the kind of coercive measures we have seen elsewhere," he added.</p>.<p>Frost had been locked in talks for weeks over the so-called Northern Ireland Protocol, which governs trade between the British mainland of England, Scotland and Wales, and Northern Ireland, and with the European Union.</p>.<p>He was especially focused on revamping the agreement's governance, objecting that the EU's highest court in Luxembourg has power over its implementation.</p>.<p>He seemed to be at odds with his government over the issue earlier in the week, when a government spokesman appeared to suggest there could be some softening on its position on the EU's role as arbiter.</p>.<p>Frost, 56, was appointed as Johnson's so-called EU "sherpa" shortly after the British leader took office in July 2019, and became chief trade negotiator after helping to finalise last year's divorce deal.</p>.<p>A career diplomat with the Foreign Office, his resume features stints in Brussels in the 1990s and as ambassador to Denmark from 2006 to 2008.</p>.<p>More recently, Frost spent nearly three years as chief executive of the Scotch Whisky Association and briefly became chief executive of the London Chamber of Commerce and Industry.</p>.<p><strong>Check out DH's latest videos</strong></p>