The only problem is that there don't need to be any presumptions of lawfulness. It CAN be proven if Obama is indeed a constitutionally legal CinC. His place in the chain of command is clearly delineated under Art. 92, so there shouldn't be any problem with a simple, but full disclosure.
Huh? How else can officers down the chain of command issue orders on a daily basis unless orders coming down the chain are presumed lawful?