I guess the only way to know for sure is to ask Trump and even then there is a high probability that he’s lying. But Trump watches Hannity more just by pure volume. And Hannity and Trump are buddies. You have to watch a few of shows all the way through to see how deranged it is
A few tidbits from the New York Times article on Hannity last month.
Hannity and Trump remain extraordinarily close and speak to each other regularly. President George W. Bush once called Hannity, too, “but Hannity’s and Trump’s personalities are much more in line,” a friend of Hannity’s told me, “and they’ve both come from the media world.”
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As the primaries gave way to the general election, Hannity and Trump’s campaign staff were in touch on an almost-daily basis. “Occasionally, we’d talk on Sean’s show knowing Trump was watching,” Gingrich told me. “The two most effective ways of communicating with Trump are ‘Fox & Friends’ and ‘Hannity.’