As the White House comes to grips with Toby's revelation that he was the NASA-shuttle leaker, Lou persuades Josh, who persuades Santos, that the sagging Santos campaign must clean house. Meanwhile, CIA conspiracy theorist Charles Frost gets a dressing down from Kate about his “ambush” of C.J.; and Bartlet and Abbey meet Ellie's fiancé, a research scientist Bartlet calls “fruit-fly guy.”