For example, can you name one witness who had been interviewed by the FBI regarding fraud?
This is an obviously unreasonable demand.
Whether I can name one or not has no bearing on whether they did, and furthermore as the FBI do not tend to publicly release the names of most people they interview, it is deeply unlikely I could have any reasonable chance of knowing about most of the people they may have done anyway.
Yes, that is my argument. Trump does not have as much power for force investigations as you think he does, and you're content with saying "they just sat there, waiting for calls to come in, and put the barest amount of effort into it" is the extent of Trump's power, which I agree with.
You have no more idea how much effort they put in than I have about FBI witnesses. Except of course you've long since got to the point where the argument rattling round your head is that if they didn't find anything, that only proves they didn't look hard enough.
Like I said, I only started paying attention a few months ago, so I haven't seen any of that. I have seen him speak a few times at rallies and at speeches. I expected him to be a much worse public speaker than what I heard (despite trying to avoid it) from the media in years previous. From those, he seems alright. Maybe I'll look through the archives one day.
He is not a bad public speaker in a sense - it's more what he's doing. His nature is to boast, exaggerate, swagger, show off; he's vindictive, bullying and aggressive, so he thrives on the attack. As long as he's free to do that, he's okay. He is, for instance, a pretty effective rabble-rousing demagogue.
However, he's poor at reading off a script: you can literally see the disinterest in his expression, plus the mechanical or bored delivery, often hurrying to get through it. That's usually when he needs to say something serious, informative, responsible and stay on-message. As a communicator of useful information without a script, he's a total bust: ignorant, chaotic, incoherent.