Boris Johnson: PM's Chequers plan 'substantially worse' than EU membership

Boris Johnson has launched yet another broadside at Theresa May's Brexit proposals by claiming her plan is "substantially worse" than EU membership.Despite facing scrutiny of his private life following the announcement he and wife Marina Wheeler are divorcing, the ex-foreign secretary is not shying away from his continuing campaign for the prime minister to "chuck Chequers".Mr Johnson made a surprise appearance at a Brexiteer event in parliament, hosted by the Leave-backing organisation Economis