Even if it were true (and I'm not saying it is), WTF cares? Do you know how hard it is to process information on the fly like that and then apply it within seconds against a rambling debate opponent? Even if this were to be true, I'd be deeply impressed.
This isn't a fucking sports competition. It's not like the president is ever (or should ever) go into any kind of negotiation without lots of prep and knowledgable advisors in the room.