Bartlet collapses before his first State of the Union address; Leo publicly admits to his former alcoholism and drug abuse; things get interesting romantically for both Sam and C.J.; Lord John Marbury helps the staff negotiate an agreement between India and Pakistan.
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 .