Just something that most of the time provides a very gentle nudge or advisory role, but in the case of another Trump would kick in a bit more strongly. It was a disaster this time, and even if Biden wins, in 4 more years we could a second Trump-type, then a third, then a fourth. The country will not survive that. We need to do something to fix the root problem, not just wait around until it happens again.
As for being hesitant to mess with what the founding fathers created this is a great commentary on that: https://youtu.be/Ti8cMxzmWoA
But the idea is to guard against either party going nutso. Parties should be given the chance to steer the ship. But we shouldn't let them take apart the ship, and deny is there is water, something has to be out of bounds. Play is "freedom within constraints" there have to be constraints, reality should be a constraint.