I could be mistaken, but yes, at first, Trump wanted nothing to do with the so called J-6 ‘Hearings’, but later on, I’m almost certain he volunteered to make himself available if called upon. I was so disgusted at Liz, and the very notion of those hearings, I don’t have all the references. I tried to block it out of my mind.
No way did he ever volunteer to participate in any way, shape, or form. He basically ignored the whole thing, like he was magically above it all. Except when he tweeted insults at everybody, like tweets are equal to congressional hearings, and congressional records on the subject. He could have presented his side, and made it harder for criminal charges to ever be filed, but he never even showed his face. It was a "no contest" plea, at best.