How much is "a lot"? Trump has cut almost all aid since taking office. The EU is paying for the aid now. I'm assuming that the reason Zelensky cares to talk with Trump is for appearances, military intelligence, and to stall the restart of trade relations between US and Russia. The US has no real place at the negotiating table anymore. Everybody's just catering to Trump's ego, because it's the easiest way to stop him from doing any more harm.