A federal judge has granted the Trump administration the authority to enforce a new rule requiring all immigrants in the United States illegally to register with the federal government. The ruling has significant implications, as it mandates that anyone without legal status, including undocumented immigrants, must comply with this registration requirement effective April 11. Additionally, Canadians staying in the U.S. for more than 30 days are also required to register. As the Trump administration moves forward with this controversial policy, reactions from various advocacy groups indicate widespread concern over the potential consequences for undocumented individuals. The Department of Homeland Security has issued stern warnings regarding compliance, and immigration enforcement agents are set to monitor adherence to the new registration process.