Persons in uniform should render the military salute at the first note of the anthem and retain this position until the last note," it says. "When the flag is ... in from Florida on Air Force ...

A video of Donald Trump giving a salute during the national anthem in Miami, Florida prior to Sunday ... wholeheartedly that he does respect the flag and what it stands for," one fan added.

His military salute to the flag during the national anthem got the attention of some viewers who wondered whether presidents are supposed to do that, or whether it’s a question of prior military ...