Many Conservatives have been conditioned to stop looking for facts and believe what the TV tells them. Trump admitted as much during the debate. When challenged on the cat thing, he dismissed the reporter’s research and said that he believes it because he saw it on TV. His voters will, too.
Roger Ailes was Nixon’s media consultant during Watergate, and the lesson he learned was that if the media was on Nixon’s side, he could have gotten away with it. Ailes went on to run Fox News. That is no accident.