The plane is probably bugged so there would be tapes.
What if Bubba was there to MAKE a videotape. Equipment set up on the plane, AG asking the questions, Bill betraying Hillary, but thereby saving his own @ss and the Foundation as the deal?
The problem is, almost nothing requires face to face anymore. So you have to think of something that does - and requires everyone know about this "secret" meeting (so they can validate the video without having to admit it exists - yet). Just as everybody now does - "by accident."