Very sorry to hear about the health conditions of the senior Bush family.
I am sure they will bounce back. I understand First Lady Barbara Bush is already doing better.
If I recall President George H. W. Bush has a significant history of lung conditions. He has a difficult time over coming infections and the like. Last time perhaps his immune system was looked into and he needed some infusions to improve it; if I remember correctly. That is not an indication there is a controversial issue at hand, it is simply that he is aging.
Perhaps he needs to change his socks and prepare his parachute to raise his spirits and improve his outcome.
I wish them well.