Just watched the season two episode 17 people. HOLY SHIT this might be the best one yet. The look that Leo gives Toby as he's going off on him and Bartlet (3:48). That was fucking powerful, and it's the first time you see the president as anything besides the honest, upstanding guy the public thinks they elected. This episode is pretty dark and scary in how power and position can skew perspective, and it's crazy how Sorkin has until this point has lulled the audience into complacency with the president's/Leo's actions.
I've already rewatched that scene a couple of times, and I will again later. Clip for all those who need a refresher:
OP: "If you suddenly skied off a huge fuckin cliff and you only had time to throw one last trick before you died, what would it be?"
Malcolm: "id probably just flail my self to death"