The unitary executive theory is a theory of United States constitutional law which holds that the President of the United States possesses the power to control the entire federal executive branch. The doctrine is rooted in Article Two of the United States Constitution, which vests "the executive power" of the United States in the President. Although that general principle is widely accepted, there is disagreement about the strength and scope of the doctrine. It can be said that some favor a "strongly unitary" executive, while others favor a "weakly unitary" executive. The former group argue, for example, that Congress's power to interfere with intra-executive decision-making (such as firing executive branch officials) is limited, and that the President can control policy-making by all exe