Liar, liar, campaign's on fire.

I came across this article today, that talks about how the word liar is traditionally an out-of-bounds term in American politics.

Hahahahahahhaahaha. I wonder what the article's author would think of our current election campaign, where everyone is accused of being a liar, and lying in favour of some kind of personal agenda?

Was there ever a time that Canadian politicians were more timid about accusing their opponents of lying (or “misusing the truth” or “using disinformation”)?