Here is the Canadian media's take on Kerry's 'crooked liars' remark...

It is,on the whole, a fair article bringing in Bush's remark and the Repub ads.

Kerry's 'crooked liars' remark has everyone pointing fingers in U.S. campaign

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Democrat John Kerry's complaint that his Republican critics are a bunch of crooked liars was one of those off-colour moments that strike fear in the hearts of political campaign managers everywhere.

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"I have no intention whatsoever of apologizing for my remarks," said the Massachusetts senator, all but officially the Democratic presidential nominee.

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Such unscripted moments as Kerry's are rare in U.S. politics but they aren't without precedent.

President George W. Bush referred to a nearby reporter as an asshole as he spoke, presumably privately, with running mate Dick Cheney during the 2000 campaign.

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http://www.canada.com/news/world/story.html?id=0d637639-fcd7-449b-9bdc-6559a8897206