Trump is pushing it after having talked to the Russians. I mean I don't have a direct line to Putin but if Russia isn't open to a ceasefire then none of this even matters. The fight between Trump and Zelensky is about Ukraine agreeing to a ceasefire.

Trump also wants to annex Greenland, take over the Panama canal and make Gaza into a beach resort. Also let's not forget when he sent out his son in law for a school project (peace in Isreal) who came back with a detailed plan without ever talking and involving the Palestinians.

The problem with a ceasefire is that Russia has an endless history of accepting negotiations only to use them to get a tactical advantage. It is standard practice for them. So of course Ukraine is very wary unless that can be prevented.