Update (0930ET): As President Biden heads for his first physical as president, The White House has issued a statement confirming that Kamala Harris will (briefly) become US President
This morning, the President will travel to Walter Reed Medical Center for a routine physical.
While he is there, the President will undergo a routine colonoscopy.
As was the case when President George W. Bush had the same procedure in 2002 and 2007, and following the process set out in the Constitution, President Biden will transfer power to the Vice President for the brief period of time when he is under anesthesia.
The Vice President will work from her office in the West Wing during this time.
Later this afternoon, the White House will publicly release a written summary of the President's physical.
The question is - will she relinquish that power?