It’s no accident that immigration has been so central to Donald Trump’s first days as president, as he works to make good on an issue that has defined his political career. | Julia Demaree Nikhinson/AP 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.

Shortly after taking office, President Trump issued 11 executive orders cracking down on illegal immigration. The orders target what he sees as an invasion at the southern border and significantly alter how the U.