Final answer:
Both houses of Congress must pass an identical bill before it can be sent to the president.
Step-by-step explanation:
Before a bill can be sent to the president, both houses of Congress must pass an identical bill. This means that the bill must be approved by both the House of Representatives and the Senate. Once both houses pass the bill, it is then sent to the president for his or her signature.
Learn more about Passage of a bill in the U.S. government