The Secretary can mint platinum coins of any face value, which is less inflationary than borrowing.
Example: You buy $5000 of Series EE savings bonds. The government spends your $5000. Finding a used car you want, you can transfer the ownership of those bonds to the car seller.
Effectively there $10,000 in circulation, just as there would have been if the government had printed new money.
The same thing is in the big picture happening each year to the level of billions if not trillions of dollars.
Further to the extent that the created currency pays off an interest bearing treasury note, by eliminating future interest it is deflationary.
Federal payment and actually the outstanding debt can be paid without any action by Congress.