Sure, the Congress has a role as the backstop of last resort, but a lot of other things have to happen before it gets to that point.
Why don't you take a look at the initial post that I replied to:
for the GOP house to try to invoke 25th amendmentDo you agree with me that Congress cannot invoke the 25th amendment?
-PJ
I agree Congress can’t initiate the activation of the 25th Amendment, but they sure as Hell have a key role to play, including using hearings and the bully pulpit to get the Administration to act.
Congress represents the American people.