After Bartlett and Hoynes finish their conversation in the Oval, the exterior shot into the office shows that it's raining heavily, including thunder. The next scene is happening simultaneously in a park where Donna and Josh are meeting Cliff about the diary. It is dry, and obviously hasn't been raining since Donna and Josh both sitting outside on a bench with dry hair and clothing.
At the park, after Josh talks to Cliff, he goes and sits next to Donna on the bench. He puts his arm around her and says it will be fine. The camera cuts away and when it cuts back, his arm is no longer around her.
During the war crimes discussion between Leo McGarry and General Adamle, the aircraft piloted by Leo during the Vietnam War is incorrectly referred to as an F-105 "Fighter Chief". The correct and official nickname of the F-105 is "Thunderchief".
The FAC (pronounced the way it is spelled) is the Forward Air Controller, not Forward Air Commander.
In his meeting with congressional staffer Terry Beckwith, Sam is told that the Mint dumped 14 billion pennies into circulation. Sam later jokes that "we already have 140 million pennies". Clearly, the line was supposed to be "$140 million in pennies", or something like that.