Trump: "A nation cannot be first on Earth if we're going to be second in space. It just doesn't work that way." Then immediately: "It... eh, it makes sense. I was going to say, does it make sense? I guess it does, when you think about it." He's talking himself through it in real time, checking if his own sentence landed, landing on a shrug. This is the rhetorical equivalent of watching someone butter toast while questioning whether butter is real.