Top Trump administration officials, including “border czar” Tom Homan and the acting deputy attorney general, visited Chicago on Sunday to witness the start of ramped-up immigration enforcement.

President Trump’s executive orders this week outline a sweeping agenda, from declaring an invasion at the border to curtailing birthright citizenship. But significant questions remain about what’s next.

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.