This idea came to me last night, and I'll lay out.
Basically, Presidents are often sitting on the toilet, cooking muffins, hunting bears, screwing interns or hookers, drunk off expensive French Champaign, hyped-up on medication (legal and otherwise), sleeping, or in a daze of dementia.
So what I suggest is that we hire up seven four-star generals (having no real function in life) who have a eight-hour duty shift to be there with the nuke-case guy.
The general would just take over things, when the President wasn't capable.....announcing the nuke war.
This wouldn't be the Pentagon four-star....it's just be a routine four-star guy who accompanied the President everywhere and would press the button if necessary.
This conflicting with the Pentagon chief four-star? No. You'd tell these nuke four-stars that each of them have a bigger four-star than the Pentagon guy.
Do we need to make this into the Constitution? That's the amazing thing.....you don't have do anything. Milley already proved that it's totally legit.
We'd just refer to this four-star crew as Milley-Men....give them a nice jacket to war.....some medals on their chest, and they'd officially/unofficially be running the nation....when the President couldn't.