good pointI can't imagine trump having such a grasp of the issues, let alone talking about them for over an hour. He'd read them off the teleprompter in a flat voice because the only time he gets animated is when he changes the topic to himself.
Trump could talk about himself for two hours.
But he wouldn't be able to cogently talk about US foreign policy in Latin America for five minutes without preparation and teleprompters.
Biden's been around so long, and served on the Senate foreign relations committee for so long, he could talk for half an hour about foreign policy without notes or preparation