Who is most important in the passage of a law—the bill's sponsor, the committee chairman who considers the bill, or the president?

Among the three persons that are named in this question, the most important one in the passage of a law is the President of the United States, as he is the person in charge of signing the bill it to make it effective or veto it to reject it.

Explanation:

The President of the United States has the power to sign an Act of Congress or not, that is, to promulgate it or reject it. It also has the possibility of vetoing it and returning it to Congress for it to modify it. In short, the President is a fundamental part of the process of enacting laws in the United States.

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