The man who tantalizes the unhappy voter with promises of change may be discovering that this diplomacy stuff is a little more difficult than it looked. After threatening the NAFTA treaty while pandering to Ohio voters facing declining manufacturing employment, the Obama camp was blindsided by a report from the Canadian television network CTV that his campaign had privately reassured Canadian officials previously that he wouldn't really change NAFTA, no matter what was said on the campaign trail, that it would just be a Northern version what the late Senator Patrick Moynihan called "Boob bait for the bubbas."

The Obama campaign told CTV late Thursday night that no message was passed to the Canadian government that suggests that Obama does not mean what he says about opting out of NAFTA if it is not renegotiated.

Barack Obama's senior economic policy adviser said Sunday that Canadian government officials wrote an inaccurate portrayal of his private discussion on the campaign's trade policy in a memo obtained by The Associated Press.

The memo is the first documentation to emerge publicly out of the meeting between the adviser, Austan Goolsbee, and officials with the Canadian consulate in Chicago, but Goolsbee said it misinterprets what he told them. The memo was written by Joseph DeMora, who works for the consulate and attended the meeting.

Goolsbee disputed a section that read: "Noting anxiety among many U.S. domestic audiences about the U.S. economic outlook, Goolsbee candidly acknowledged the protectionist sentiment that has emerged, particularly in the Midwest, during the primary campaign. He cautioned that this messaging should not be taken out of context and should be viewed as more about political positioning than a clear articulation of policy plans."

"This thing about `it's more about political positioning than a clear articulation of policy plans,' that's this guy's language," Goolsbee said of DeMora. "He's not quoting me.

"I certainly did not use that phrase in any way," Goolsbee said.

The bottom line is that it has taken four days to drag something approaching the full story out of the Canadian embassy and the Obama campaign. As I suggested before, both Obama and Clinton have exaggerated their opposition to NAFTA in order to win votes in economically depressed Ohio. This is a case where the technical parsing of the truth by the Obama campaign falls well short of the whole truth.