<P> If the President approves of the legislation , then the President signs it into law . According to Article 1 . Section 7 of the Constitution , when the President chooses not to sign or does not approve of the bill , the President must return the bill , unsigned , within ten days , excluding Sundays , to the house of the United States Congress in which it originated , while the Congress is in session . The President is constitutionally required to state any objections to the bill in writing , and the Congress is constitutionally required to consider them , and to reconsider the legislation . This action , in effect , is a veto . </P>
who has the power to approve or veto legislation constitution
the President