“Incredible,” said one journalist on Friday of right-wing legal activist Leonard Leo’s reasons for refusing to comply with a subpoena from the Senate Judiciary Committee as the panel investigates conservative Supreme Court justices’ relationships with Leo and other Republican operatives and donors.

The Federalist Society co-chairman told The Washington Post that the subpoena was “politically motivated.”

“I am not capitulating to [committee Chair Dick Durbin’s (D-Ill.)] lawless support of Sen. Sheldon Whitehouse and the left’s dark money effort to silence and cancel political opposition,” said Leo, who has lobbied for the appointments of far-right judges to federal benches, in a statement.