President Donald Trump’s call to impeach judges who’ve ruled against his aggressive use of executive power is prompting alarm and dismay from the jurists who ultimately hold the fate of his policies in their hands.

In his 14 years on the federal bench, James “Jeb” Boasberg has resolved secret grand jury disputes that arose during the special counsel investigations into Trump, oversaw improvements after the Trump-Russia investigation in how the Justice Department conducts national security surveillance and handled his share of sentencings for rioters who stormed the U.