According to the United States Code, which has a special section for commemorative coins: “No coin issued under this subsection may bear the image of a living former or current President, or of any deceased former President during the 2-year period following the date of the death of that President.”
Archive article: https://archive.is/28sTn
My guess is that he’s saying this to suck up to Trump, even though he knows he can’t do it. And that Trump Inc will make “commemorative” coins and sell them at inflated prices to MAGA idiots who will believe they’re real coins and try to spend them sometime in the future.