People of good will, regardless of their political leanings, know the mainstream media lies. They do it often, they trumpet their lies incessantly and at the same time they strongly suppress all news counter to their political narratives. This is a sad state of affairs.
These lies are not isolated incidents of just one reporter or media company, but a continuous stream. Even if you are sympathetic to that political viewpoint, you have to know this by now. PragerU gives 1 (well documented, widespread) example this morning:
RCsocial.net — a friendly social networking space for those with an interest in Catholicism.