In fairness, they are programmed to obey their propaganda masters on Fox and Talk Radio. If Hannity tells them to be concerned about Benghazi this week - they will do so. If another right wing demagogue orders them to be concerned about Uranium One next week, they will obediently comply. Nunes memo the following week ? No problem at all. If Trump wants to whip a diversion of the moment to obfuscate from the narrative that Mueller is closing in on him, all he has to do is send a signal to Hannity, Levin, and the others, and they will make it happen.
Just illustrates how the right wing is controlled by media personalities who can shape the narrative to for right of center constituents, often at the expense of critical thought and evidence based debate.