The President was aware ahead of its public release what was contained in the Mueller report. So, too, had Trump grown wary of former White House counsel Don McGahn, who sat for more than 30 hours of testimony with Mueller's team. In the report, Trump is described as having several tense encounters with McGahn during his White House tenure, including episodes when McGahn was prepared to resign rather than carry out Trump's demands. In an anecdote relayed in the report, Trump and McGahn went back-and-forth over the note-taking, which Trump insisted good lawyers -- such as his onetime counsel Roy Cohn -- never did. Trump hadn't backed off that view by Friday morning, when he made clear on Twitter his frustrations at the report.
Source: CNN April 20, 2019 12:16 UTC