Apparently the Ronald Reagan Institute claims to own Ronald Reagan's image and [claims the ability to prevent the use of his image for commercial gain](https://www.chron.com/news/article/RNC-Trump-campaign-told-to-stop-using-President-15434408.php).


I am pretty sure I am allowed to sell pictures of George Washington, Abraham Lincoln, and John F. Kennedy for profit. But I can't sell images of Ronald Reagan for profit?


At what point does a person's image enter the public domain?



At what point does a dead person's image enter the public domain?