President Donald Trump is already following through on campaign promises he made to crack down on the flow of migrants crossing the border, and Arizona border communities are bracing for the changes that could be coming.

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,