Bartlet has the duty of formally welcoming newly appointed ambassadors from other nations; Leo continues his efforts to get the President to support the "missile shield: defense system", even though the shield doesn't quite work; CJ must ask a popular comedian to turn down an offer to host the Will Rogers dinner; Sam is angered when Toby adds a "drop-in" to Sam's already perfect speech without consulting him.
Elenco: Martin Sheen , Dulé Hill , Bradley Whitford , Alan Alda , Allison Janney , Janel Moloney , Jimmy Smits , John Spencer , Joshua Malina , Mary McCormack , Moira Kelly , Richard Schiff , Rob Lowe , Stockard Channing .