The expansion of presidential powers includes the formal, inherent and congressional delegation powers. The formal powers are a veto power that report to Congress on State of the Union. Commander in Chief power allows to send troops into conflict without declaration of war by Congress. Modern presidents have also taken a much more active role in setting the nation's policy agenda, and it is now expected that they will enter office with clear strategy and work with their party in Congress to pass legislation. The majority of controversial has been the president's use of his power as commander in chief. Several contemporary presidents have used their power as commander in chief to enter foreign conflicts without appealing to Congress for a formal
