One way to conduct a coup is to control who can run for elected office. Examples of this abound in autocracies and police states, with the most recent being China’s coup in Hong Kong. America’s progressive left is attempting the same in this country, by targeting popular Republicans to make them ineligible for election. Let’s start with the law and its origins. As a rule, the Constitution prevents Congress from prohibiting a person who meets the basic requirements of Article I § 2 (age, citizenship, residency) from competing in a federal election or being seated in government should they win....