Proving Trump knew or should have known there was no fraud is a central part of the case sir. I am not like you who thinks people can be convicted just because you personally consider them to be a liar. Jack Smith is going to march in dozens of Trumps own people to testify they told him his claims were BS. In a court of law it holds a lot of weight when its shown that the people who voted for Trump, supported his re-election campaign, and in many cases stood to personally benefitted from his re-election told him his claims were BS. Claiming Trumps own VP, AG, FBI director, etc were in a conspiracy to stop Trump from exposing voter fraud is a defense Trump can go with, its just not one thats going to be taken seriously.