I'm pretty sure the him he was referring to was the reporter, meant as a quip. But... like... to just walk off the stage at that point and not have any kind of follow up is just awe striking regardless of who he was actually talking about. This was a press conference to validate his competency and to run away when called out on such a big mistake and pointing out how Trump is using it, with a quote that can be so misinterpreted... I'm at a loss for words.