In the wake of the Mueller report’s release, Trump administration officials asked former White House counsel Don McGahn to publicly declare the president never obstructed justice, according to multiplereports on Friday.

McGahn, one of the key witnesses in the special counsel’s report, refused Trump’s request in part because he didn’t want to comment on the investigation beyond the testimony he had already given to special counsel Robert Mueller’s team.

Mueller’s report, a redacted version of which was made public on April 18, detailed 10 instances in which President Donald Trump may have obstructed justice by attempting to intervene in the Russia investigation.

Among those instances was one in which McGahn said the president directed him to fire Mueller as special counsel. McGahn rebuffed Trump’s demand ― which proved to be one of several instances of the president’s staff foiling his attempts to influence the investigation. Trump has shrugged off these reports, telling CNN’s Kaitlan Collins during the annual White House Easter Egg Roll: “Nobody disobeys my orders.”

The president has instead insisted he never asked McGahn to fire Mueller.

“If I wanted to fire Mueller, I didn’t need McGahn to do it, I could have done it myself,” Trump tweeted last month.

But the president asked White House special counsel Emmet Flood in private to inquire with McGahn about releasing a statement affirming Trump never obstructed justice by asking him to fire Mueller, The Wall Street Journal reported Friday.

“We did not perceive it as any kind of threat or something sinister. It was a request, professionally and cordially made,” William Burck, a lawyer for McGahn, told the Journal.

The White House did not immediately respond to a request for comment.

The House Judiciary Committee issued a subpoena to McGahn in April commanding him to testify on May 21 and requesting he supply documents related to his testimony outlined in the Mueller report.