Media Bias?

If you could infer bias solely from the quantity of criticism, you would have to conclude that historians are biased against James Buchanan and biased in favor of Abraham Lincoln because there are more negative evaluations of the former’s presidency than the latter’s. To take it to an even greater level of absurdity, you would have to conclude that historians "are in the bag" for Churchill and Roosevelt as opposed to Stalin and Hitler.

I certainly would not argue for the complete absence of bias in the media, but the American people decided to go with the Democrats in 2006 and 2008 after many years of preferring the Republicans. One must at least consider the possibility that there might be some objective basis for being more critical of the Republicans.