Gavin Williamson threatened to unleash 'the world's biggest s**tshow' on the Government while fighting for a job as Defence Secretary in 2019, an explosive new book has claimed. Former No10 Chief of Staff Gavin Barwell claims Williamson warned then-PM Theresa May that he would not go quietly if she tried to sack him. Former No10 Chief of Staff Gavin Barwell's …
