President Donald Trump said Tuesday he is opposed to current and former White House officials testifying before Congress about special counsel Robert S. Mueller III’s report.

“There is no reason to go any further, and especially in Congress where it’s very partisan — obviously very partisan,” Trump said in an interview with The Washington Post.

The House Judiciary Committee has subpoenaed former White House Counsel Don McGahn, whom Democrats describe as a potential star witness in their ongoing probes of all things Trump.

[Will the White House or Trump’s lawyers block Don McGahn from testifying?]

Earlier Tuesday, a White House official told Roll Call that the counsel’s office is reviewing that subpoena, and it is mulling potential legal strategies that could include claiming executive privilege or absolute immunity for current and former officials whom House Democrats seek to compel to testify about findings from the Mueller report.

While the special counsel only looked at whether the Trump team’s actions amounted to criminal activity, the House and Senate, under the Constitution, would take his findings and determine if the president is guilty of “high crimes and misdemeanors.” Those would be the basis for impeachment proceedings by the House, and would trigger a removal trial in the Senate.

Watch: Barr on Mueller report ahead of release: ‘No collusion’