I wasn't paying much attention to the NAFTA debate between Clinton and Obama, other than noting that Clinton was the first to distance herself from NAFTA early on.

Then Obama picked up, once again, on one of her themes and said in a later debate that he, too, would walk away from NAFTA if he couldn't get reforms.

Then the Canadian government leaked some info that his campaign had been up there making backchannel assurances not to worry because he was behind NAFTA despite his rhetoric on the campaign trail. (Who else is Obama giving backchannel assurances to that are contrary to what he tells voters?)

Obama denied any such talk, and said even if there was such talk whatever they are talking about was taken out of context.

Then the Canadian government produced a memo [1] documenting the meeting and the assurances.

Then Obama said the meeting was held with his top economic advisor without his knowledge and that it was supposed to be a "casual conversation." (Who else are Obama's top advisors having "casual conversations" with without his knowledge, and how did he know it was supposed to be "casual conversation" if he didn't know about it?)

He also said that his previous denials of such talks were based on the information he had at the time [2]. (Which sounds just like the same argument he ignores when criticizing Clinton for her vote on the Iraq war.)

Then, watching his "explanation" on Countdown with Keith Olbermann tonight, the Mrs. noticed that Obama has a tell. I'm not much of a poker player (and I would never play poker with the Mrs. because I already owe her several million dollars on past bets), but when she pointed it out it was pretty obvious. You can see it in this video clip:

Prior to this I hadn't been able to get much of a read on the guy, other than he's an eloquent speaker. This whole episode "tells" me a lot, so to speak.