Why the Presidents of the United States should maintain an American flag pin?

This is a common contact, do not you? His Majesty is known for wearing a pin on some occasions. Why an ID card? I think it started with President George W. Former Bush. Is it appropriate for a head of state to wear a flag lapel badge?

It is not mandatory, but only justified a touch of class senior U.S. government Lunches to them. This is another way for them to show pride in their country. Not too expensive, I'm sure you can get one for himself.

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