Bill is introduced by House of Representatives, then it is discussed about in committee. If the House committee approves the bill with a 51% vote, it is sent to the senate. If the senate also approves the bill with a 51% vote, it is sent to the president. The president has 10 days to decide what to do--whether to pass the bill or veto it. If the President also passes the bill, it becomes a law. If he vetos the law, the bill goes back and must be approved with a 2/3 majority by both the house and Senate in order to override the veto.