Hundreds gathered in Dallas and Fort Worth to protest President Donald Trump's new immigration policies on Sunday.

President Trump began his immigration crackdown with a flurry of executive orders. Immigration experts say they lay out how he hopes to transform enforcement at the southern U.S. border and beyond.

In more than 21 actions, Trump has moved to overhaul parts of the US immigration system, including how migrants are processed and deported from the US. The White House has since publicised some of these efforts.

President Donald Trump spent his first week in office bringing the U.S.-Mexico border to the nation’s center stage. NewsNation has tracked what’s happened so far in its special coverage, “Crisis on the Border.