Chief Justice of the United States, John Roberts, has warned that personal criticism of federal judges is dangerous and must stop. This comes after President Donald Trump called a federal judge who ruled against the administration "wacky, nasty, crooked, and totally out of control." Roberts did not specifically name Trump or anyone else but insisted that attacks on judges are not from "just any one political perspective." The U.S. Marshals Service reported 564 threats for judges in the government fiscal year that ended in September, up from the previous year. The president has also been critical of Roberts and the five other justices who struck down global tariffs he imposed under an emergency powers law.