The lying US administration is so used to lying with no consequences, defying and ignoring US law and the Constitution, and stepping all over people defiant of law and prior agreements, that it needs to realize that Russia means business about its demands that NATO and the US stopping eastern expansion .
The way things work with US media or politicians is that they speak something, see if there is pushback or a general reaction, and then adjust accordingly. That’s why they will put something out with “details” to come. They put their finger to the wind to decide what’s next and how they should posture the next details according to the public’s perception of the prior and first lie and the public reaction to it. So if they wonder what is going to happen if they push on Russia, then they need to learn from others.
It is said to learn from other people’s mistakes as you don’t have time to make them all yourself.