Hoover was almost assassinated.

"Whoever controls the volume of money in any country is absolute master of all industry and commerce. And when you realize that the entire system is controlled, one way or another, by a few powerful men at the top, you will not have to be told how periods of inflation and depression originate."
James Garfield

"The money power preys upon a nation in times of peace and conspires against it in times of adversity. It is more despotic than monarchy, more violent than autocracy, more selfish than bureaucracy."
Abraham Lincoln

Both successfully assassinated.