If you think that the news media is saying the same thing over and over again, it is because it is. Even Saturday Night Live notices it, that is now obvious it is.
There are a number of tricks that media uses to deceive the viewer. Repetition like this is one of them. This is a well known public speakers technique. Another is the man in the street interview. The editor selects the worst possible subject from the many interviews they have done. Or from their point of view the best possible suspect based on the narrative they are trying to sell. Thus an interview I saw about a Trump voter took place in a smoky pool hall. This supposedly represented the "working man."
Notice also the use of accents in the ones chosen to participate in interviews or in presenters they hire. A person from the South will imply that the person is slow and rather stupid. This is absurd, but that is how a southern accent sounds to many viewers. This is why a potential actor or presenter with an accent will lose their accent as quickly as possible. I remember hearing the actor that played Adama in Battlestar Galactica in an interview. He had a rather lower class British accent that he lost for the role. Note also the occasional hiring of a presenter with posh British accent. This sounds intelligent and suave to the average viewer. John Oliver was hired for his accent more than anything else. It is especially effective when someone with such an accent curses. This is done for the effect it gives the viewer.
Everything you watch on TV is designed for the effect it gives the viewer, do not be deceived. Being aware of these techniques is the first step. Discussing these manipulatively shows, especially with your children, is extremely important.