There's no red button.
Why do seemingly intelligent people such as Cronenberg believe the POTUS has a red button that will instantly launch nuclear missiles?
Life is not a cartoon.
There is a "football" however.
A army intelligence official who follows the president with the codes/phone he has to give for a launch. (Called the football)
For a defensive launch, the president has wide authorization. For a offensive launch, not so much..it has to be done by committee.