Proof positive that Barack Obama isn't qualified to be president: Asked last night what he would do about NAFTA if he finds himself working in the Oval Office, Obama said he would "immediately call the president of Mexico, the president of Canada, to try to amend NAFTA, because I think that we can get labor agreements in that agreement right now."

Canada has a prime minister, not a president.

If you listened really carefully at Tuesday night's debate, you would have heard Joe Biden tweaking Obama on that small point even as he agreed with him on the larger one. "Hey, look," Biden said after Obama finished talking, "the president's job is to create jobs, not to export jobs. And the idea that we are not willing to take the prime minister of Canada and the president of Mexico to the mat to make this agreement work is just a lack of presidential leadership."