When Franklin pulls Oliva's sweater over her head as they begin to make love, her necklace is pulled to the side. The shot is readjusted and the necklace is hanging down around her neck.
When Olivia sits in the limo to negotiate with the mayor, an orange Los Angeles bus is visible passing outside the car window. The Los Angeles bus system does not serve Washington, DC.
Cyrus notes to Fitz that they are down one Republican senator because Susan Ross was tapped to become the new Vice President, yet the Governor of Virginia would have appointed an interim replacement while waiting for a runoff election to take place.
After they decide to go up against Rowan, Olivia's team, Jake, and David Rosen are remarkably uncareful given what they know Rowan is capable of (even removed from officially being Command).