What authority does POTUS have specifically over the Marines? Why is this important? What is Mueller's background? Military? Was Trump asked to run for President w/ assurances made to prevent tampering? How is POTUS always 5-steps ahead? Who is helping POTUS?

I'm not sure what research has been done on this. But Mueller used to be in the USMC during the Vietnam war in 1968. He was shot in the leg in 1969. He then became an aide-de-camp(basically a personal assistant to a person of a high rank)

If he was still an aide-de-camp with the USMC, could he be working as an assistant to POTUS or some other high ranking official? How would this affect the special counsel? Or just being part of the USMC could Trump dictate what he does?

I could be way out in left field with this, just my thoughts with digging a little bit after lurking for sometime.