Still this "private" oath causes another point of this posting. I thought incoming Presidents were able to take an oath on a later date if inauguration day was on a Sunday. I recognize that the oath and inauguration day is in the US Constitution, but there were some exceptions to this rule made.
My mother heard faster than I did about the "private" ceremony that occurred yesterday and all I knew was that he's going to have his inaugural on Sunday. Now it's time to find out what's the exact rule on this.