The episodes show a problem Democrats and Republicans share – but with dramatically different coping mechanisms. Both are dealing with insurgencies or political pressure from the ideological ends of their respective parties.
But leaders are handling it with variant approaches.
Democrats are taking the role of permissive and semi-indulgent parent, giving a voice to the progressive wing of the party without letting it take charge of the whole operation.
Republican leaders, meanwhile, are threatening misbehaving GOP rank-and-file with the equivalent of reform school or being grounded for life: Shape up or lose the support of the president and perhaps with it, your job.