According to DVD commentary by director Alex Graves, the way each of the characters sleeps (Josh with a pillow over his head, etc.) is modeled after how their actors actually sleep.
In this episode, there is a scene where Josh (Bradley Whitford) and Donna (Janel Moloney) are checking into their hotel rooms. In the scene, Josh is having trouble opening his door using his key card so Donna comes over and helps him with it. This scene is reminiscent of a previous episode 20 Hours in L.A. (2000) where the same thing happens except at that time they were still working together and they had adjoining rooms.
There is a train wreck news story on TV in the background of this episode (appears in all 3 candidates experiences). Strangely, the day the episode first aired, a suicidal man caused the worst train wreck in a decade.
In this episode we learn the names of a number of the other candidates running for both parties nominations. From the Democratic Party, Clarkson and Atkins. For the Republicans, Former Speaker of the House and Acting President Glen Allen Walken, Allard, Gibson, and Johnson.