Many of the things that presidents do…aren’t explicitly in the Constitution, and many of the things we associate with the presidency weren’t done for years…after the Constitution was adopted. A president just set a precedent, and it stuck. For a minor example, there’s the president’s Saturday radio address, invented by Ronald Reagan and then copied by everyone since, although Barack Obama added a twist with YouTube versions…Everything from cabinet meetings to press conferences to “pardoning” Thanksgiving turkeys is part of the slowly built-up White House job requirements. Congress, on the other hand, has its role well delineated in the Constitution…the framers knew all about Congresses and parliaments—but they were inventing the presidency from scratch. There had never been anything like it.