Book excerpt: This one-of-a-kind guide provides a crash course in the laws governing the President of the United States. In an engaging and accessible style, two law professors explain the principles that inform everything from President Washington's disagreements with Congress to President Trump's struggles with the courts, and more. Timely and to the point, this guide provides the essential information every informed civic participant needs to know about the laws that govern the president-and what those laws mean for those who want to make their voices heard.