Josh interrupts Sam in a meeting at a law firm, asking him to leave his job and come to work for the President. This is a direct reference to when we see 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 Two Gunmen: Part 1.
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.
The exterior of the "hotel" where the Santoses are staying is the Joseph Smith Memorial Building in Salt Lake City (as can be seen above the door). Though it was originally the Hotel Utah, it is now an administrative building and library owned by the Mormon Church.