Here is an excellent example of how the right wing media in the US (especially Fox "News") uses its power to rant and lie to plant false ideas to manipulate the population into holding views that allow right wing politicians to mobilize the public to control elections:
If you watch the video you can see Bill O'Reilly frustrated by being caught in his lies and says in exasperation that he doesn't care what the facts are, he just "knows" that it is bad there and that this evil is coming to get America. In short, despite the facts, he continues to sell his right wing scare story. He isn't a "news" reporter. He is a propagandist selling a story to prop up a political viewpoint.