Four immigration judges in Washington state were ahead of a sea change in immigration enforcement that has reversed a long American tradition. The denial of bond for anyone held on immigration charges has unleashed tens of thousands of lawsuits alleging violations of constitutional rights against illegal confinement. The Trump administration suffered a legal setback Monday when a third appeals court knocked down its policy after two other appeals courts agreed with it, setting up a likely showdown at the Supreme Court. The practice began early this decade at a detention center in Tacoma.