President Donald Trump has already inundated the country’s immigration system with enough changes to create immediate impacts along the border and across American cities. Thousands of migrants trying to gain entry in the United States to seek asylum using the Custom and Border Patrol’s mobile app — set up by the Biden administration to deter migrants from crossing illegally — had their appointments canceled,

President Trump's first week back in office was momentous for border security and immigration — issues with an outsized impact on Arizona. The big picture: Trump campaigned on securing the U.S.-Mexico border and curbing illegal immigration,