I'll start quickly.
To extend what I was saying, if we look at negotiations between Russia and Ukraine—with the United States pushing for those—the question we have to ask is this: What's in it for Vladimir Putin? Why would he agree to negotiations when he thinks, right now, that he's winning the war, and that U.S. support may not be there over the long haul?
He experienced what happens to the Ukrainian military if U.S. aid is suspended when we stopped providing aid between October 1, 2023, and April, when we finally passed the supplemental. The Ukrainian military withered greatly and Russia experienced great gains, which Ukraine is still trying to recover from militarily. He could look to the end of 2025 as a real opportunity, when Ukraine will be significantly withered militarily.
Yes, Russia has lost more than half a million people, but we know this here in the United States: The sunk-cost fallacy applies when you're in a long war and you may have lost a lot and think you want to get out, but you can see a light at the end of the tunnel. I think that light at the end of the tunnel for Putin gets brighter with the United States being less willing to support Ukraine over the long haul.