The most interesting thing that I've noticed upon my many rewatches is just how much more complex the "he know's everything" aspect of Bartlett's character is. One of the popular criticisms of the show was how unrealistic it was to have a president who had the perfect answer to everything and was smarter than everybody else.
I think over time people realized the surreal aspect of the show, but Bartlett is far more than a know it all hero. One of my favorite episodes, Gone Quiet, perfectly highlights this with him being insecure about his lack of military knowledge, but I just noticed how funny it was with the way the president was sitting when the expert (the brilliant Hal Holbrook) was talking.
Just a funny departure from his usual swagger that is generally either confident or folksy. Then when he changes posture as he tries to be a part of the conversation before getting politely shut down is great. As is his line: "ok, well I'll just stand over there."
The most powerful man in the world, ladies and gentleman.