Who made the executive branch of the republican government?

The Executive Branch of Government was set in place by the US Constitution which was written by Thomas Jefferson and ratified in June of 1781. The Executive Branch is part of a three-fold government designed to balance the power in the US Government. The Executive branch consists of the President and his advisory cabinet which is there to help him make decisions on matters. The President must sign a law in order fr it to become a law. There are times when a president can choose not to sign a law; this is called a veto. A can only be broken if 2/3 of congress votes in favor of the bill. Then the bill is passed as a law. The President can also make an executive decree which takes the same precedence as a law.