That's Andrei Illarionov, he says a lot of things.
I opened the video anyway with the intention of watching it, but after seeing the title "Putin's fake about "NATO non-expansion to the East" closed the tab.
Here is why:
"30 years ago today: Kissinger on Russia & NATO expansion Dec. 5, 1994 PBS Newshour, w/ Jack Matlock" [0]
"Matlock: There is one of the factor here that we seem to be forgetting, and we did, though it was not a legally binding assurance, we gave categorical assurances to Gorbachev, back when the Soviet Union existed, that if a United Germany was able to stay in NATO, NATO would not be moved eastward. And, you know, I think that the current Russian government is very clear
Host (interrupts): So we would be..., but that assurance was given to the Soviet Union.
Matlock: That is right. It is not a legally binding, but it was, you might say, a geopolitical deal. And if we simply ignore it, then I, certainly if I were a Russian, it would be hard for me to interpret this, even though it may not be intended that way, and it is not, as anything less than an attempt to shut Russia off from Eastern Europe.
Host: And that was a line that Yeltsin used today, that it would isolate Russia and sow the seeds of discord."
Note that Kissinger doesn't dispute that fact even though he gives different objections.
Matlock used to be an ambassador to Russia in the late days of the USSR but he is not a Russian sympathizer:
"It's not that you refrain from doing something because it will offend Russia. If Russia is doing something that we don't want it to do, we should offend them."
What an arrogant stance.
[0] https://www.youtube.com/watch?v=ZHm_7T7QNl8&t=706s