JUDY WOODRUFF:

Now, for what we know about what is happening inside the White House at this tumultuous moment, and the real-world effect of this upheaval, we turn to two veteran national security reporters.

Greg Miller writes for The Washington Post. And Michael Gordon of The New York Times, he wrote the story about Russian missile moves that we reported earlier.

Welcome, both of you, welcome you back to the program.

Let me start with you, Greg Miller.

We have gotten, I think, two different versions over the last 24 hours of what happened to General Flynn since yesterday, was that he was asked to resign. Today, the White House seems to be saying he was forced to resign. What's the truth?