A federal judge on Friday struck down an executive order signed by Donald Trump earlier this year targeting the law firm Jenner & Block, ruling the effort ran afoul of the Constitution’s First Amendment.

The decision from US District Judge John Bates in Washington, DC, represents the second time in recent weeks a judge has thwarted Trump’s attempt to retaliate against a top law firm.

“This order, like the others, seeks to chill legal representation the administration doesn’t like, thereby insulating the Executive Branch from the judicial check fundamental to the separation of powers,” Bates, an appointee of former President George W. Bush, wrote in the ruling. “It thus violates the Constitution and the Court will enjoin its operation in full.”