Who signs legislative bills to make them become laws?

The correct answer is that the president of the U.S. signs legislative bills to make them become laws. In the United States’ legislative process, once both chambers of Congress—the Senate and the House of Representatives—have passed a bill, it is then sent to the president. The president has the authority to sign the bill into law, thereby enacting it, or to veto it. A veto prevents the bill from becoming law unless there is a subsequent two-thirds majority in both the House and Senate to override the veto.

The process underscores the separation of powers established in the Constitution, where the legislative branch (Congress) creates laws and the executive branch (the president) has the power to approve or reject those laws. This mechanism is designed to ensure that laws undergo rigorous scrutiny and reflection at multiple levels of government before being enacted.