We all complain about the Turtle, but we must all remember that it is mostly the entire Senate Republican members who keep the worm in power.
The majority leader(s) in congress control committee assignments.
Buck the leadership and you don’t get on the committees you want or those that are powerful.
This flawed system as well as the ability to control the schedule and what bills are allowed out of committee(s) is the real power in congress. Individual members are powerless to stop the leaders unless it is an all or nothing proposition like we saw with the Speaker race in the house recently where a small group wielded enough power to gain concessions.
The “GOP” needs a LOT more fire in the senate and to do that we will have to primary a lot of GOP senators. It’s coming and it is why a few of them are “retiring”. Will it be enough to change the personality? I don’t know and I kind of doubt it because the Senate is a weird creature.