President's Day: Three occasions when POTUS transferred power during scheduled Anaesthesia

 Vice-Presidents during the Bush 43 and Biden 46 terms of office have acted under the 25th Amendment 

This online article at THEHILL dot-com details the instances when

Vice-President Dick Cheney

and Vice-President Kamala Harris might also be counted among those who had Article I powers of the 

Presidency for the brief periods when the Chief Executive was under medical anaesthesia :

President Biden temporarily transferred power to Vice President Harris on Friday Nov. 19, 2021 before he went under anesthesia for a routine colonoscopy.

Biden had procedure done at Walter Reed Medical Center as part of his annual physical, White House press secretary Jen Psaki said in a statement.

"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," Psaki said. "The Vice President will work from her office in the West Wing during this time."

https://thehill.com/homenews/administration/582331-biden-to-transfer-power-to-harris-while-he-gets-colonoscopy