President Donald Trump has begun his America First overhaul of government, signing scores of executive orders in his first weeks back in office. Some are muscular power grabs, while others amount to little more than press releases. Together, they channel his MAGA vision and move to create a federal government accountable to the president.

A regulatory expert said the directive will likely be challenged in court, as Congress has largely shielded some of the affected agencies from involvement by the White House.