WASHINGTON — A meeting with lawmakers vanished from the White House schedule. A ceremonial executive order signing was abruptly canceled. A statement about how a signature campaign promise will be paid for was walked back. The first days of any new president’s term are disorderly, as a sprawling government bureaucracy and overwhelming global responsibilities are suddenly thrust upon an administration that is trying to hit the ground running and sometimes just to get the phones working. By any measure, Thursday was a chaotic day in President Donald Trump’s White House. The confusion began early, when the president left the White House nearly an hour late for his first trip away from Washington, a quick jaunt to Philadelphia to speak to a Republican congressional retreat. While airborne, White House aides confirmed that a meeting between Trump and Utah Sen.