A U.S. judge has agreed to temporarily block implementation of President Donald Trump's executive order to strip security clearances and take other actions against prominent law firm Perkins Coie over its policies promoting workforce diversity and its work for his 2016 election rival Hillary Clinton.

Several law firm leaders agreed that the unprecedented suspension of security clearances was troubling, but none would discuss the presidential action publicly.

U.S. law firm Perkins Coie has sued President Donald Trump’s administration in federal court, claiming Trump illegally retaliated against the firm over its prior work for his former opponent, Democrat Hillary Clinton,