What might Cohen know about the June 2016 meeting in Trump Tower between Don Jr., Kushner, Manafort, and a Russian lawyer with ties to the Kremlin who promised to provide them with “dirt” on Hillary Clinton? “When Michael says that he wants the truth out there, and that the truth is not the president’s friend, he is not talking about marginal issues,” says a person close to Cohen. “He’s talking about core issues at the heart of the Mueller probe.”