So why would *Pete* rather talks about talk about Trump's record than his psychosis? IDK. I can offer a couple of speculations:
Pete is a policy wonk, that's his wheelhouse so to speak.
It's clear the public and especially the media and double especially Trump's supporters have normalized his psychology pathology. What hope of getting more traction on that question after 9 yrs? SO, if people won't disqualify him for being literally evil/crazy, won't disqualify him for just continually making up alternate reality as he goes along every time his lips move, *maybe* you try to get people to see what he's doing (as opposed to what he is) hurts their interests. IOW, accept that Trump supporters do know and do actually like exactly who and what he *is* -- so take a different direction? Hail Mary there too of course since the whole GOP program since at least Gingrich has been to persuade the lower economic quartiles of the public to vote on culture instead of economic self interest and it's worked quite successfully.