Putin has repeatedly said that Zelensky is illegitimate and would not negotiate with him. Guess who isn't invited to this particular set of negotiations?

The US has opened negotiations in a strong position by giving one side everything they asked for, to the point that the Russians are trying to figure out what else they can get away with.

When Trump eventually concludes negations it'll be every bit as hollow as Bush standing on an aircraft carrier with a mission accomplished banner behind him. Trump will demand a Noble prize, just like the one Obama got. Peace will not be achieved.