It might not even have to be that bad. All potus has to do is declare that the new IOER is out side of their statutory authority, and the banks will kill themselves with their own plan.
Their plan is to jack up interest rates to tank the economy and Trump's re-election prospects. The banks have insulated themselves by paying IOER (Interest Overnight Excess Reserves) which started only in 2008. The big connected banks pay themselves effectively the fed funds rate (IOER equals FFR) on excess reserves.
Where does it come from? It is the interest on the ~$4 trillion of T-bonds and MBS the fed bought in QE. If that money wasn't paid to the banks, where would it go? It would have been returned to the US Treasury. So it is a tens of billions of dollars a month subsidy to the big banks from the taxpayers. And as the fed/banks jack up the interest rates, they have been and plan on continuing to jack up the rates they pay themselves on our dime. Kill that kickback mechanism, and the banks that own the fed can't jack up interest rates without screwing themselves.
Another option would be to mint up a score of platinum 1 ounce eagles, and print "$1 Trilliion dollars' on them, and deposit them at the fed, and demand the USG get paid for its excess resrves too.