Byron York expounds, here and here, on how, as Phil mentions below, the Clinton campaign is aggressively pushing the story I mentioned the other day about Obama adviser Austan Goolsbee reassuring Canadian officials that his candidate’s NAFTA-bashing is just posturing. A correction: I characterized Goolsbee as making a “call,” when his comments apparently came in a meeting. It’s a subtle but possibly important distinction, since it means that the Obama camp’s denials are less likely to be outright lies and more likely to be differences in memory. (Of course they may still be lies, but I’d read the stories as suggesting that Goolsbee made a phone call specifically to calm the Canadians, which would be harder to forget than comments in the course of a meeting that may have covered a range of topics.)