Josh interrupts Sam in a meeting at a law firm, asking him to leave his job and come to work for the new president. This is a direct reference to when he's in flashback Josh interrupting Sam at a similar meeting to leave a law firm and join the first Bartlet campaign in second season episode In the Shadow of In the Shadow of Two Gunmen: Part I (2000).
This episode marks Rob Lowe's first appearance on the show since the seventeenth episode of Season Four.
When Josh (Bradley Whitford) is looking for his phone in the office, you can vaguely hear him say, "sh!t", which is slightly masked by noise. The captions confirm that he does say "sh!t" despite this being a television show that would usually not allow such profanity.
An aide tells President-elect Santos (Jimmy Smits), overwhelmed with the calls he needs to make to foreign heads of state, that the "Surinames of the world" can be handled by his chief foreign policy adviser. In real life, Smits' father was from Suriname.
When Josh is on the phone in the limo, the phone has a sticker on the back with the name B. Whitford!