Conservative MPs who want Boris Johnson to resign as prime minister are facing “intimidation” and “blackmail” from ministers, a senior Tory MP has alleged. William Wragg, a Conservative MP who has called on Johnson to quit, said a number of his colleagues “have faced pressures and intimidation from members of the government because of their declared or assumed desire for a vote of confidence in the party leadership of the prime minister.” Some MPs have been threatened that investment could be withdrawn from their constituencies, Wragg told the Public Administration and Constitutional Affairs Committee in the House of Commons, which he chairs. He said he had also received reports that Downing Street staff and ministers have encouraged “the publication of stories in the press seeking to embarrass those who they suspect of lacking confidence in the prime minister.” Wragg said: “The intimidation of a member of Parliament is a serious …