In a statement, the Canadian Embassy disputed the television story.
"The Canadian Embassy confirms that at no time has any member of a presidential campaign called the Canadian Ambassador or any official at the Embassy to discuss NAFTA. Last night, the Canadian television network CTV falsely reported that such calls had been made. That story is untrue. Neither before nor since the Ohio debate has any presidential campaign called Ambassador Wilson or the embassy to raise NAFTA."
On his campaign plane, Obama said: "It wasn't true."
His campaign also denied the CTV report.
"When Senator Obama says that he will forcefully act to make NAFTA a better deal for American workers, he means it," said Obama spokesman Bill Burton. "Both Canada and Mexico should know that, as president, Barack Obama will do what it takes to create and protect American jobs and strengthen the American economy — that includes amending NAFTA to include labor and environmental standards."
http://ap.google.com/article/ALeqM5gUW0ApBGkGgu5CfdiXsMTzGe8jDAD8V3HL181