Republican states' lawsuits derail Biden's major immigration policy changes

Republican-led states have mounted an aggressive legal strategy to derail key elements of President Biden's immigration agenda, challenging at least a dozen nationwide border or immigration-related policies in federal court.

Officials in Arizona, Missouri, Texas and other GOP-controlled states have convinced federal judges, all but one of whom was appointed by former President Donald Trump, to block or set aside seven major immigration policies enacted or supported by Mr. Biden over the past year.

The states' lawsuits have doomed a proposed 100-day deportation moratorium, suspended two rules aimed at limiting immigration arrests, forced border officials to reinstate the Trump policy of requiring some migrants to await their asylum hearings in Mexico and closed the Deferred Action for Childhood Arrivals program for so-called "Dreamers" to new applicants.