Robert Mueller’s probe crashed and burned in large part because the FBI and the prosecutors were convinced erroneously that I had personal contact with Julian Assange that permitted me to introduce Roger Stone to WikiLeaks. If I had introduced Roger Stone to Julian Assange, the prosecutors believed, this introduction would have permitted Mr. Stone, who was in touch by telephone with then-candidate Donald Trump, “to collude” with WikiLeaks to time the release of Podesta emails in October 2016