Just created this graph from the past two years of Politifact ratings. It's most enlightening.

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Notice how Democrats peak at "Mostly True" and then decline as falsehood increases, while Republicans continuously increase toward falsehood and peak at "False"? They also start with fewer "True" ratings and end with much more "Pants on Fire" ones. At least according to Politifact, Republicans have a serious lying problem compared to Democrats.