“For more than two centuries, it has been established that impeachment is not an appropriate response to disagreement concerning a judicial decision. The normal appellate review process exists for that purpose,” Roberts said in a statement that did not mention by name either Trump or Boasberg.

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.