If the Executive (or cabinet or whatever it's called) all agree, then the 25th doesn't have to go to a vote, does it? And Pelosi, Shumer, Pence et al were hoped up earlier.
I just wondered because Pence taking over and knifing Trump would redeem him with the GOP and possibly save his career, enabling his alignment with Trump to be minimised as "Pence doing the right thing when it came down to it".
If Senators don't know yet, then it's not such a huge secret to keep......but I am probably talking shite 