Is he poor? Maybe. The question is why is he poor? He just sold Mar-a-lago to a company owned by Don Jr., alledgedly for something over $400 million.
He might be poor because he's hiding all his assets on offshore banks. If so, then the question becomes: why is he doing that?
You young fellas sit back, I'mma tell you about the time in '96 that I bought a 1GB hard drive for a thousand doll-hairs. And then later that year got 64MB of RAM for another thousand doll-hairs, and the next month the price dropped in half. I could run two java programs AT THE SAME TIME!