For example, Lincoln's abolition of slavery was a wonderful work, anti-mainstream, which led to the American Civil War.
There is also the old American President Roosevelt (another Roosevelt before Roosevelt in World War II). See Baidu for details. Many of his policies are against capitalists and monopolies. .
Even presidents, such as Reagan (I seem to remember, I don't remember, if you are wrong, please point it out), were assassinated by gunmen and almost died. When the whole world thought he was going to push for banning guns (after all, he was assassinated as president), he said that guns don't kill people, but the real killers are those who have guns (as I remember it).
Is it so wonderful? This really depends on different people's opinions. The United States has experienced so many presidents, and everyone really has it. . .