Josh is met in a WW passageway by Democratic Party leaders who saw him in talks with a Republican representative from Maryland, and they mention the Bartlet re-election is a "lonely landslide." This meant that, while carrying a majority for himself, Bartlet did not enable fellow Democrats to get re-elected as well. Similarly-termed elections: California's Democratic Governor Jerry Brown [1978], Reagan over Mondale [1984].
Congressman Landis (Matt McCoy) claims that Chesapeake translates to "Great Shellfish Bay". A more correct translation (from Algonquin) is "at the great water".
The set used for Air Force One is the exact same set for the film Air Force One (1997)
At several points during the episode, various characters refer to the jet fighter attempting a visual inspection of Air Force One as an F-16 or Falcon (meaning an F16 Fighting Falcon). However, the plane, when seen through the window by the assembled press pool, is actually an F-15E Strike Eagle.
Congressman Landis offers Josh a story about a friend of his, a Jewish comedian. WW directors Christopher & Vincent Missiano grew up on Long Island, New York with comedian Jerry Seinfeld.