I do remember one other time. I had attended the 2010 national Boy Scout Jamboree (before the whole organization went to shit) then president obama was supposed to come speak to all of us and decided instead at the last minute to appear on I think the Ellen show or something similar. He instead did a pre filmed 10 minute speech and sent. Now weather or not it was because he skipped out on us or the majority of people knew how shitty he was, a stadium full of 43,000 scouts erupted in boo’s when his video was playing. Not everyone but it sure was satisfying.
I know that Trump attended the 2017 jamboree. I think Bush and Clinton were at least at one while they were president.