C.J. assumes the job of White House Chief of Staff. In "Access", set after the end of the Bartlet administration, the narrator of the show-within-the-show states she was the only two-term female White House spokesperson.
Matt Santos calls his aid Ronna, pronounced "Row-nuh", but later in the series people pronounce her name "Ron-nuh".
National Security Advisor Nancy McNally tells C.J. Cragg, "Minelli's been over at the Iranian Embassy twice in the last three days." While Iran maintains an Interest Section in the Pakistani Embassy, Iran has not staffed an embassy since diplomatic ties were severed in 1980.
When Donna and Toby are about to interview the first person for Press Secretary, a crew member is visible just after the person opening the door clears the frame on the right side of the screen. He is kneeling with a boom microphone extending towards Donna and Toby.
When Josh visits Congressman Santos at his office, a boom mic is reflected in the picture frame behind the congressman.
Georgian representative Roman Mindeli has a Georgian name, but does not look Georgian and speaks with a thick Russian accent. Georgian and Russian are not related languages, and their accents in English do not sound remotely similar.