 Chief Justice John Marshall, who establishes doctrines such as executive privilege, for instance, or recognizes the president doesn't need to just turn over every document the Congress asks for, that the president doesn't work for Congress and the president doesn't work for the judiciary. We have a separation of powers. We have co-equal branches of government. And let's not forget that the executive was not meant to be some wallflower. The executive, the president, is supposed to be the spirited part of government. It's supposed to be vigorous.