Historical Gloss and Foreign Affairs: Constitutional Authority in Practice

A new interpretation of the constitutional law of foreign affairs, as it has been developed throughout its history by presidents and by Congress.

In the more than 230 years since the Constitution took effect, the constitutional law governing the conduct of foreign affairs has evolved significantly. But that evolution did not come through formal amendments or Supreme Court rulings. Rather, the law has been defined by the practices of Congress and the executive branch, also known as “historica...