Every four years, Americans elect the President of the United States, a figure who has come to be called the "leader of the free world" and plays a central role on the international political stage. For 225 years, each U.S. president has marked their era. But what are the differences between them? What political upheavals have shaped the institution and powers of the President, and is it really as powerful as we think?

This book sheds light on the U.S. political system and its turbulent political history, from the nation's founders to Donald Trump.