Today, President Donald J. Trump saluted throughout the entire Star Spangled Banner / Pledge of Allegiance combined presentation.
He used to put his hand over his heart, if Anon is not mistake.
A marker?
Pic from LIVE: Pres. Trump Speaks at "Buckeye Values PAC Rally" in Dayton, Ohio - 3/16/24
https://m.youtube.com/watch?v=bu5M7gtoa7I
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National Anthem Etiquette
[Civilians:]
Place your right hand over your heart. Assuming you are wearing a hat, remove it with your right hand and place it over your heart.
What About Military Service Men and Women?
Military service men and women should perform the military salute at the beginning of the National Anthem, holding this posture until the end.
https://starspangledflags.com/national-anthem-etiquette-what-you-should-know/