The president sanctions and promulgates, or vetoes, or ignores the laws and resolutions voted by congress, and issues decrees and regulations for their execution.
Bills of whatever character may originate in either house, but no bill can become a law until it has passed both houses by a majority of all the members to which the house is entitled under the constitution, and if the governor vetoes a bill it cannot become a law until it has again passed both houses by such a majority.
He may veto appropriation bills by items, but any of his vetoes may be overruled by a two-thirds vote of each house.
In May 1872 something was done towards alleviating the odious Reconstruction laws for dragooning the South, which had been passed by Congress in spite of the vetoes of President Johnson.
Most of Johnsons vetoes were promptly overruled by the large majority opposed to him in both houses, but the vetoes of all the other presidents have generally prevented the enactment of the bills of which they disapproved.