Deputy Attorney General Rod Rosenstein will make sure special counsel Robert Mueller’s report is in the Justice Department’s hands before he steps down from his post, NBC News reported Wednesday.

That caveat was surfaced hours after ABC News reported that Rosenstein planned to depart in the next few weeks. President Trump’s attorney general nominee, William Barr, is expected to take over around that time, pending Senate confirmation.

A source close to Rosenstein told NBC that the deputy attorney general’s departure hinges specifically around the report Mueller will soon file on his sprawling investigation into Russia’s interference in the election. Those findings are expected to be submitted by mid-to-late February and Rosenstein would resign by early March, according to NBC.

Rosenstein has continued to help supervise the Mueller probe even as Trump’s pick for Acting Attorney General, Matt Whitaker, assumed control of it, per NBC.