As much as I love Trump, he shouldn’t do that. A mandated max on interest rates for lending institutions would have ripple effects throughout the economy that he doesn’t foresee. What he could do is cut spending, putting less pressure on interest rates from “crowding out” by gov’t. He could also lower tax rates on corporations and the “rich”, which would induce a great flow of lendable capital and decrease corporate demand for external financing.
Trump is wrong on this one. But that’s ok, you can’t be right on everything, and I don’t have to agree with him on everything.