Why accuse politifact of being liberal?

The Republicans on Y/A don't like Politifact because they don't like hearing the truth about the members of their own party, which is really, really bad this year. They prefer watching Fox Fiction News and reading Ann Coultas books which are in the discounted book section of Borders right next to Bush's book of memories. True, I was just there. I like Politifact and they are bipartisan.