Yesterday, Obama attacked Hillary on NAFTA and here is a key quote from his memo:

"Misrepresenting your position and carefully parsing your words when you don't think you'll get caught are the hallmarks of the kind of politics that Barack Obama is running to change."

However, here is how the NAFTA story went (from Politico):

"For four days after a news report alleged that Sen. Barack Obama’s economic adviser had told Canadian officials to ignore the Democrat’s tough talk on trade deals, the campaign gave incomplete – and sometimes misleading – explanations of whether a meeting had even taken place.

Obama spokesman Bill Burton said Monday night that the campaign had known of the meeting between adviser Austan Goolsbee and Canada’s consul general in Chicago since a Canadian television network, CTV, first reported the interaction last Wednesday.

“When they reported it, we were aware of it at that point,” Burton said.

Burton and other campaign aides – even Obama himself – vociferously denied the substance of the report, which alleged Goolsbee had given back-channel assurances to Canada that the Illinois senator’s call for reopening labor and environmental rules in the North American Free Trade Agreement was merely political posturing.

But for days, the campaign was less-than-forthcoming on a specific detail: Had a meeting actually occurred?

“Well, the Canadian ambassador issued a statement saying that that story was absolutely false. There had been no such contact,” said Susan Rice, an Obama foreign policy adviser, on MSNBC’s “Tucker” show Thursday. “There had been no discussions on NAFTA. So we take the Canadians at their word . . . Period.”

Also Thursday, Goolsbee told ABC News that he “would not confirm or deny meetings with anyone.” Yet he hinted at an interaction, saying Canada’s consul general contacted him “at one point to say ‘hello’ because their office is around the corner.”

David Plouffe, Obama’s campaign manager, was asked Friday by reporters to comment on the conversation reported on Canadian television.

“The story is just not true. Obama's position on this is very clear. Our campaign and the ambassador have been very clear on this; it did not happen,” Plouffe said, appearing to tailor his statement to only address elements of the initial Canadian TV story that had been discounted.

The Canadian network tweaked its initial story last week to reflect that Goolsbee had spoken with the consul general in Chicago, not the ambassador in Washington, as it was first reported. It is also appears now that the Canadian officials, not Goolsbee, initiated the contact.

Despite Obama's promises to run as a transparent and straight-talking candidate, the campaign offered muddled responses that allowed the story to metastasize in the days leading up to a primary election in Ohio, where trade issues could prove decisive."

A definite parsing of words and misrepresentation of position.  How can Obama change politics when he's running politics as usual?