Facts have a liberal bias. For example, a student dragged me before the dean for having a liberal bias, because of teaching students that Puritan conservative values continue to influence our poverty policy. This was despite being able to point directly from their policy of wedding widows to deal with their poverty to the conservatives marriage initiative as a means of dealing with single mothers. Conservatives will then take these facts, complain about them, and try to take professors into review boards, deans, and public shamings. This is what you want to do.