The Prime Minister has had to face down his critics as he tries to quell a growing rebellion over his plans to override the Brexit divorce deal. Boris Johnson opened the debate on the Internal Market Bill in the House of Commons on Monday, taking the place of Business Secretary Alok Sharma. Mr Johnson made the case to MPs that it is crucial that the legislation, which the Government has said would breach international law, is in place by the end of the year in order to act as a safety net if no trade deal is agreed with Brussels.