As he often does, the president has been wildly misrepresenting the facts around Ukrainian war aid. He claims that the United States has provided around $350 billion in aid; the actual figure is $120 billion. He has said that Europe has provided about $100 billion; the correct figure is $138 billion. (It is true that some portion of the European aid is in the form of loans.)
As a share of gross domestic product, the U.S. is roughly in the middle of the pack, well below small countries like Estonia and Denmark that are geographically close to Ukraine but roughly in line with larger countries like France and the U.K.
Against that backdrop, it is not clear why Trump believes that the U.S. is entitled to his requested $500 billion of compensation from Ukraine's critical minerals industry, large resources of titanium, lithium, uranium and others. Regardless, the Ukrainians appear likely to agree to something as soon as Friday, when Ukrainian President Volodymyr Zelenskyy visits Washington.
It's also important to note that the European Union and its members have promised an additional $121 billion in assistance while the U.S. has only pledged an additional $5 billion.
Read #29 as many times as you need to.