A few points here…
First, the question is actually legitimate in terms of demonstrating a few things, not the least of which is at least a superficial grasp of things like the US Nuclear arsenal. But beyond that, the question was actually a question of prioritization in terms of which areas of defense would you prioritize in terms of development and upgrading. Being able to formulate an answer to this demonstrates that you actually have some grasp of how the various elements of military defense would be applied.
Rolling Stone wrote up a good summary of how bullshity Trump was on this, and how it’s reflective of basically everything he says, always.
Even if you didn’t know the specific term “nuclear triad”, you could easily figure out from the context of the question that Hewitt asked that he was just asking about the prioritization of those different segments of the military. But trump couldn’t, because he is not a smart man.
But then Trump basically just gave his standard boilerplate bullshit response:
“Well, first of all, I think we need somebody absolutely that we can trust, who is totally responsible, who really knows what he or she is doing. That is so powerful and so important.”
Oh, good. Well, that totally didn’t answer the question.
So then Hewitt pressed him on it.
Trump’s response was even dumber than simple ignorance of the term though. He whipped out the response of, “Uh, yeah, nuclear bombs are super awesome and powerful.”
Hewitt: “Of the three legs of the triad, though, do you have a priority? I want to go to Sen. Rubio after that and ask him.”
Trump: “I think – I think, for me, nuclear is just the power, the devastation is very important to me.”
I mean, HOLY SHIT, that is like an answer a mentally handicapped person would give. The power and devastation is important to him? WTF does that even mean? It’s like he’s just pulling out random words from his big bag o’ bullshit. “Say stuff like ‘powerful’ and then people will associate it with you!”
And the fact is, when you see him speak, it is his entire being. He is more full of shit than any politician I can recall. He doesn’t just lie about stuff, but he literally just says particular tough sounding words! His entire campaign is the equivalent of jingling a shiny object in front of a baby.