U.S. Attorney General William Barr on Thursday offered some details of Special Counsel Robert Mueller’s report on Russia‘s role in the 2016 U.S. election before making it public, emphasizing that it found no collusion between President Donald Trump’s campaign and Moscow.

Barr, a Trump appointee, gave a news conference ahead of the planned release of the long-awaited report as he sought to shape the narrative on a watershed day in Trump’s presidency.