First published by Money Metals here: https://www.moneymetals.com/news/2017/09/13/govt-debt-increase-impact-001157

The U.S. Government’s massive one-day debt increase had a profound impact on the amount of money it will have to fork over just to service its interest payment. On Friday, Sept 9th, the U.S. Treasury increased the total debt by a stunning $318 billion. Thus, the total U.S. Government debt increased from $19.84 trillion on Thursday to $20.16 trillion on Friday.