You are comparing a wealthy radio huckster to a president, for obtaining viewpoints? Impressive analogy.
It's impossible not to bump into Limbaugh or Levin or O'Reilly (who I actually did watch, from time-to-time) or Christian radio if you're paying attention. The themes are clear. I do not pretend to know where Limbaugh is, or isn't, in line with Trump on any issues, though. I watched Beck change to a different kind of nutjob, but I don't know many specifics. It's all poison, but it sells big-time and they get rich.
As Ted Koppel said to Hannity, it's "bad for the country."