Josh investigates the suicide of a pilot with whom he has things in common; Donna tries to get an invitation to the Congressional Christmas party to hear Yo-Yo Ma perform; Jed insists on signing a mountain of Christmas cards himself; after a White House visitor has a strange reaction to a painting, C.J. sets out to discover its provenance; following weeks of volatile behavior and an outburst in the Oval Office, Josh meets with representatives from the America Trauma Victims Association and finally deals with the trauma from his shooting.

Hoynes throws his hat in the presidential ring, and asks Josh to join his campaign; Jed's health begins to deteriorate; Toby and Kate head the protocol negotiations with the Chinese over the arrangements for the upcoming summit, which is jeopardized when Jed mistakenly accepts a Taiwanese flag at the National Prayer Breakfast; Bernard takes his new position as head of the Gifts Unit to heart as he gives Charlie a hard time about retrieving the flag so that it can be returned; Josh has his hands full with a pro-Taiwanese senator holding a hard line on recognizing their independence; Bob Russell crashes an Oval Office photo op with the governor of Pennsylvania, who's also another potential presidential candidate.