/----/ You are delusional./—-/ You’re grasping at straws - as usual. Trump has made it clear he wants his day in court. Do you think all the Impeachtards including Old Joe Biden and Hunter want to testify under oath?McConnell has to prevent any testimony in the impeachment trial, because Trump's people don't want to try to defend him in sworn testimony. It was easy for them to not appear before the house investigation because Trump didn't want them to testify, but he wants his people to stand up and vigorously defend him in the trial. Those potential witnesses are still afraid of being caught in lies, or not being energetic enough in their defense of Trump. It's just too much of a chance for them to take. McConnell has to either prevent everybody from testifying, or try to explain why Trump's people are a no show.
Yes, it's clear that Trump wants to open everything up to be investigated. He wants to make it a massive exercise in "what-about-ism" and muddy the subject till nobody is even sure what is being discussed. It's one of his favorite tactics. However, McConnell knows that Roberts will at least make some effort to limit the trial to the subject at hand, and if the trial is focused on that, it won't work out well for Trump. Anything that could be used to compel Bolton, Mulvaney, Blair, and Duffey to testify won't work out well for Trump.