A spokesman for President Donald Trump’s personal attorney hit back against a Washington Post report that Special Counsel Robert Mueller is investigating the president for possible obstruction of justice.

The Post reported Wednesday evening that Mueller has widened his investigation to include whether Trump obstructed justice, citing five people briefed on the requests and noting that the investigation began after Comey was fired last month.

Mark Carallo, a spokesman for Trump’s attorney Marc Kasowitz, questioned the legality of the leaking information about the investigation, calling it ” outrageous, inexcusable and illegal” in a statement to TIME. He did not deny the Post report.

According to the Post, Director of National Intelligence Daniel Coats, Director of National Security Agency Mike Rogers, and Rogers’ former deputy Richard Ledgett agreed…