There are more than 120 AI bills in Congress right now

A bill typically needs to pass a committee, or a smaller body of Congress, before it is voted on by the whole Congress. Many will fall short at this stage, while others will simply be introduced and then never spoken of again. This happens because there are so many bills presented in each session, and not all of them are given equal consideration. If the leaders of a party don't feel a bill from one of its members can pass, they may not even try to push it forward. And then, depending on the makeup of Congress, a bill's sponsor usually needs to get some members of the opposite party to support it for it to pass.