The Justice Department argued to a judge at a hearing on Wednesday that she should dismiss a lawsuit brought by Perkins Coie, a prominent Democratic-aligned law firm, over allegations that President Donald Trump unconstitutionally revoked its employees’ security clearances and attempted to curb its lucrative work with government contractors.

President Donald Trump has claimed he is suing the law firm Perkins Coie which was the target of an executive order he signed last month. Trump claimed in a Truth Social post Wednesday that he was “suing” the Democratic-tied law firm for its “egregious and unlawful acts” and the conduct of one unnamed member of the firm.

Perkins Coie and WilmerHale asked two federal judges on Wednesday to permanently put an end to President Trump’s threats to their businesses.