**What is the process by which a bill becomes law in the U.S. Congress?**
For a bill to become law in the U.S. Congress, it undergoes several stages. Initially, it is introduced in either the House of Representatives or the Senate. After introduction, it is assigned to a committee, where it is reviewed and can be amended. If approved by the committee, the bill moves to the floor for debate and voting. If it passes in one chamber, it proceeds to the other chamber for a similar process. Both chambers must agree on the exact text. Finally, the bill is sent to the President for approval or veto, completing the legislative process.