Chief Justice Roberts doubles down on defense of courts as SCOTUS gears up to hear key Trump cases

Asked during a fireside chat event in Buffalo, New York, about judicial independence, Roberts responded in no uncertain terms that the role of the federal courts is to "decide cases, but in the course of that, check the excesses of Congress or the executive."

That role, he added, "does require a degree of independence."

The Supreme Court is slated to hear a number of high-profile cases and emergency appeals filed by the Trump administration in the next few months, cases that are all but certain to keep the high court in the spotlight for the foreseeable future.

Among them are Trump's executive orders banning transgender service members from serving in the U.S. military, restoring fired federal employees to their jobs and a case about whether children whose parents illegally entered the U.S. and were born here should be granted citizenship. Oral arguments for that last case kick off next week.

Just hours before Roberts spoke to U.S. District Judge Lawrence Vilardo, a high-stakes hearing played out in federal court in Washington, D.C.

Boasberg's March 15 order that temporarily blocked Trump's use of the law to send migrants to a Salvadoran prison sparked ire from the White House and in Congress, where some Trump allies had previously floated calls for impeachment.

Roberts, who put out a rare public statement at the time rebuking calls to impeach Boasberg or any federal judges, doubled down on that in Wednesday's remarks.

"Impeachment is not how you register disagreement with a decision," Roberts said, adding that he had already spoken about that in his earlier statement.

In the statement, sent by Roberts shortly after Trump floated the idea of impeaching Boasberg, said that "for more than two centuries, it has been established that impeachment is not an appropriate response to disagreement concerning a judicial decision," he said.

"The normal appellate review process exists for that purpose," he said in the statement.