For some reason I cannot fathom, Chris Cillizza of CNN is regarded as respectable political journalist. In fact, he's widely regarded by people in political journalism as one of the influential players in the industry. They believe he speaks with credibility and authority, and many of them follow his lead.
Actually I think I can fathom the reason. It's because journalists don't do what you think they're supposed to do. They don't make well-considered judgments about what constitutes worthwhile news, and then deliver that news to you in a responsibly sourced, factual manner. You want to think they do that, but they don't. What they do is mock, scoff and point fingers of superiority at people they've decided to pick on.