“Goofs”? He spouted gibberish in a rambling, stream-of-consciousness response to one of the most basic questions a presidential candidate could be asked, completely unable to remotely address the question. Even for Trump this was bad.
Of course, even if he was able to answer questions and was coherent, he couldn’t answer a question about his priorities. First, because he doesn’t have plans, and second because all he’s ever had was a series of “promises” made during his campaign, which he’s largely failed to fulfill (e.g. The Wall, jailing Hillary). He can’t bring those up as priorities, because it would just draw attention to the fact that reality got in the way of his core campaign promises.
That’s almost certainly true, given he didn’t want to be elected in the first place. But yeah, he can’t admit defeat, so he may not make that much of an effort to stay in power, but he’ll do his best to totally fuck things up as he leaves.
Yeah, he lost track of the question, no doubt. But Trump is still unable to answer the question of what he’d do in a second term. He had no idea, fundamentally. If forced to (try to) answer that question, he’d spout some different gibberish about how the economy was going to do really well and how great everything would be.
That’s the weird thing about Trump’s attacks on his former staff - because he can’t admit he makes mistakes, he usually says, “That guy was always a stupid, crazy loser, but I decided to give him a chance and hire him.” It’s like he has no idea how bad he looks in that scenario.