If a zero interest rate could lead to favorable refinancing or paydown of our national debt, I would be interested.
But that's what other countries (e.g., Germany, Japan) are trying, with really no good results, even in the short term.
I agree Trump is probably looking at this short term, because it CAN make things look good - 2% home loans, 3% car loans even for people with low FICOs to get them all to throw money into the economy, etc (because why pay to keep money in the bank?). But it's unsustainable, and that's the problem. At some point interest rates have to go back up for stability, to a higher point than they are now. The last thing you want to do for the long term is decrease them more now.
I mean, how about if we actually stop increasing the national debt by cutting spending before we look at cutting it down?
Zero percent interest is really no different than the left's "here's some free stuff" policies. At some point, somebody has to pay for it.