Donald Trump escaped his third suspected assassination attempt unhurt after a gunman calling himself the “Friendly Federal Assassin” opened fire during the prestigious White House Correspondents’ Association Dinner. The US President and members of his administration are believed to have been the targets of Saturday night’s attack , attorney general Todd Blanche said. The suspect, teacher and California Institute of Technology graduate Cole Tomas Allen , 31, stormed security in the lobby of the Washington Hilton armed with a shotgun, a handgun and multiple knives. In a manifesto sent to family minutes earlier, Mr Allen allegedly revealed he was trying to kill Trump administration officials , a US official told the New York Post. President Trump said Mr Allen was “a very troubled guy” who “hates Christians” after details of the manifesto emerged. But he insisted the shooting would not have an impact on King Charles’ state visit, which will go ahead , saying: “He’s a great guy, and we look forward to it.…