This is interesting:

The Clinton campaign’s Chief Strategist, Mark Penn, and Communications Director, Howard Wolfson, hold a conference call TODAY at 12:00 p.m. EST to discuss a new report on CTV and other issues.

The original story also said:

Low-level sources also suggested the Clinton campaign may have given a similar warning to Ottawa, but a Clinton spokesperson flatly denied the claim.

It looks like the Clinton line heading into the weekend is going to be, “Obama doesn’t have any intention to keep his promise to withdraw from NAFTA if it’s not renegotiated; but I will.”

Having said that, notice how the Canadians are responding (HT: RedState):

Canada’s Prime Minister Stephen Harper said Thursday the United States should not reopen talks on the North American Free Trade Agreement as the two U.S. Democratic presidential hopefuls have proposed.
Harper warned that renewed talks would give Canada the chance to renegotiate the pact so that it is more favorable to his country.
“If any American government chose to make the mistake of reopening that we would have some things we would want to talk about as well,” Harper said.
Trade minister David Emerson said Wednesday it would be unwise for the U.S. to renegotiate NAFTA because the it has a good deal when it comes to access to Canada’s oil.

Ah, Canada, the one oil-rich state that we were on good terms with, until those wild-eyed unilateralists started threatening to rip up our trade treaties… I can only imagine what gas prices will be like then…