In his first week, President Donald Trump declared a national emergency at the U.S. southern border, reinstated some of his first-term policies and ended programs that allowed people to legally enter the U.

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.