Zach Levitt

President-elect Donald J. Trump was the first Republican to win the popular vote in two decades, but by only a 1.5-point margin, the narrowest since 2000.

Before the Trump administration’s cuts, members of the civilian federal work force were in every state and in thousands of the nation’s cities and small towns.

The effects of an interruption in radio and radar service could be seen almost immediately, as planes circled in holding patterns. They are still being felt in cancellations and major delays days later.