the ability the president to veto legislation is an example of
Executive order (United States) Congress has the power to overturn an executive order by passing legislation that invalidates it. Congress can also refuse to provide funding necessary to carry out certain policy measures contained with the order or to legitimize policy mechanisms. In the case of the former, the president retains the power to veto such a decision; however, the Congress may override a veto with a two-thirds majority to end an executive order. It has been argued that a congressional override of an executive order is a nearly impossible event, due to the supermajority vote required and the fact that such a vote leaves individual lawmakers vulnerable to political criticism.[22]
Article One of the United States Constitution Section 1 is a vesting clause that bestows federal legislative power exclusively to Congress. Similar clauses are found in Articles II and III. The former confers executive power upon the President alone, and the latter grants judicial power solely to the federal judiciary. These three articles create a separation of powers among the three branches of the federal government. This separation of powers, by which each department may exercise only its own constitutional powers and no others,[1][2] is fundamental to the idea of a limited government accountable to the people.