A federal judge Friday ruled that admissions changes at the nation’s top public high school, which were put in place to pursue “equity,” are discriminatory against Asian Americans. “The undisputed evidence demonstrates precisely how the Board’s actions caused, and will continue to cause, a substantial racial impact,” U.S. District Court Judge Claude Hilton wrote in his decision. “The Board instituted a system that does not treat all applicants to TJ [Thomas Jefferson High School] equally.”