Two groups can learn something from the experience: first, network producers and executives thinking about how to conduct interviews and host debates with Trump; second, rival Republican presidential candidates trying to envision a path to beating him.
What the TV professionals should learn is that they have two choices in dealing with another Trump primary campaign.
In part, as Ramesh Ponnuru suggests, that means drilling into Trump’s presidential record on conservative terms rather than liberal ones — asking about, for instance, the failure to complete the border wall or the surge in crime in the last year of his administration.
The utility of this last line of questioning is also something that Trump’s prospective rivals, Ron DeSantis especially, can draw out of the CNN experience, since they can tee up those kinds of conservative-friendly challenges if the media does not.
But the most basic lesson to be drawn by Republican politicians from watching Trump’s town hall is the importance, for any would-be Trumpian successor, of demonstrating that you too can engage with the mainstream press and come away a winner.