Answer: Who signs the bills to make them become laws?
Congress creates and passes bills. The president then may sign those bills into law.
Explanation: The bill is sent to the President for review. A bill becomes law if signed by the President or if not signed within 10 days and Congress is in session. If Congress adjourns before the 10 days and the President has not signed the bill then it does not become law ("Pocket Veto.")