According to Richard Stengel, former Time editor, the American Century, originally announced by Time's founder Henry Luce, came to an end this week with Trump's America First administration. This is a piece worth your read no matter your ideology.
For instance, these revealing sentences:
The inaugural address of Donald Trump did not contain the word justice or cooperation or ideals or morals or truth or charity. It has only one reference to freedom. It did mention carnage and crime and tombstones and a variety of words never uttered before in a presidential inaugural.