Following a harrowing chapter in the nation's history, the White House celebrates the Fourth of July. Bartlet endures the painful process of nominating a candidate for vice president. But his first choice, Secretary of State Lewis Berryhill (recurring guest star William Devane - "Knots Landing"), will have a difficult time getting approved. Meanwhile, while the reclusive First Lady tends to personal matters, Amy (recurring guest star Mary-Louise Parker - "Fried Green Tomatoes") champions Abbey's violence prevention provisions for an upcoming bill. Josh and Amy share a romantic moment. And Donna is appalled by a new intern, Ryan (recurring guest star Jesse Bradford).