When McKay has his first "press the flesh" event at the factory, the same woman with short blonde hair and a brown coat passes him walking out the gate twice.
The red convertible driven by Marvin Lucas (Peter Boyle) has three different license plates during the opening credits: "677 EIY", "185 ENV", and "772 DYD". All are from the 1972 era in California.
On election night, the television announcer says they will be shifting to their correspondent at McKay headquarters at the "Regency Hyatt" (sic) hotel, but later when McKay is escaping the crowds in the hotel, he rides in an elevator with a busboy. The busboy's uniform has the name 'Fairmont" on the front.
After watching his commercial previews, Bill is laying on his couch watching TV. Between the close-up and far shots, his head moves from the arm rest to the back cushion, and his right arm changes position on his head.
When the TV commentary comes on, McKay's assistant leans forward and puts his chin on his right hand, but in the shot from the front, his chin goes on his left hand.
Bill McKay's wife is a photographer, or at least is shown to know what she is doing with a camera. Yet, the actress does not hold the camera correctly.
(AT 51:00) When David opens the door to the office Bill and Marvin are in.