(Bloomberg) -- Leon Fresco, a partner at Holland & Knight and former Deputy Assistant Attorney General for the Office of Immigration Litigation at the U.S. Department of Justice Civil Division, and David Bier, an immigration policy analyst at the Cato Institute, discuss why federal immigration judges are pushing back against a Trump administration effort to impose "numeric performance standards" on verdicts, claiming that any such action would threaten their independence. They speak with Bloomberg's June Grasso and Michael Best on Bloomberg Radio's Bloomberg Law.