It's is utterly amazing reading the discussions the founders had regarding impeachment. Everything that they are saying today mirrors what was argued way back then. In the end, what the defense is saying etc is exactly everything that the founders rejected which is why the "high crimes and misdemeanors" is in there and that it is fairly broad in what it means.
....
Bottom line, After going through reams of this stuff, I have little doubt that the founders would have impeached and convicted Trump in a second. I also think they would be appalled by what has become of their creation.

I was jumping around from site to site yanking out a few quotes here and there as a lot of it was "opinion" and I wanted to try and find quotes etc. I failed to note each and every site. Sorry, but here are a couple I used.

https://www.smithsonianmag.com/history/inside-founding-fathers-debate-over-what-constituted-impeachable-offense-180965083/
https://www.npr.org/2019/11/18/779938819/fractured-into-factions-what-the-founders-feared-about-impeachment