Trump must have receive Intel indicating Ukraine going to lose more land if this war continue, there are some news where Ukraine lost 1000 lives, Russia only lost 33 lives, if prolong this war, Ukraine male will be close to extinct

US already achieve what they want, they need to protect the mining deal and also US companies acquiring Ukraine agricultural land.

Zelensky know his time will be outnumber once he sign that ceasefire deal, he will be out thrown by Ukraine parliament. Not to mention the amount of corruption inside Ukraine military, smuggle lots of weapon into black market for their own gain.