I think that everybody in the world whatever colour or creed has a jerk like JR in his or her family somewhere. Whether it is a father uncle cousin or brother everybody can identify with JR and that certainly had something to do with the success of 'Dallas.'
For many members of Congress the time for choosing is near - do what the party leadership demands or do what the people have asked you to do. If my colleagues don't mind some advice from a newcomer I'd suggest going with the will of the people.