Not to my knowledge, but he has disrespected the military plenty of times. Not only by sleeping during memorials or constantly checking his watch when bodies were being unloaded, but also by making statements that might mislead people into believing that his son Beau had died in battle when that is not the case at all.

I also remember when I saw the father of one of the guys who died in Benghazi interviewed on Infowars, he said that when Biden first met him and shook his hand, he congratulated his son on how big his balls were or something to that effect. Such an asshole.