That's the question. Did John McCain seal records of men left behind in-order to hide evidence of dishonorable conduct as a POW, and the effect it may have had on his political career?
See the links above. Btw, those records are still sealed.
Having watched the POW/MIA hearings rather closely, I'd say he very well might have. During those hearings, his purpose was clearly to suppress evidence rather than gather as much evidence as possible to evaluate.
I think his behavior as a senator on this issue has been despicable and probably very self-serving.