Tucker Carlson is smarter politically than Glenn Greenwald. When Greenwald first went on Carlson’s show people were defending it saying that Greenwald was getting the message out to people who would have never heard it otherwise, but the opposite was true. Carlson was using Greenwald to expand his base. He wants to bring in more fringe independent-minded people by posing as an anti-establishment figure, and he uses Greenwald to give legitimacy to that image.
Everything I see about Tucker makes me think he is one of the smartest people in politics. I would even say it’s likely that he becomes President (but it might be a decade or two)