What part of the federal government writes laws?

Why this is the answer

Congress writes the nation's laws. The first sentence of Article I hands every legislative power the Constitution grants to a Congress made up of a Senate and a House of Representatives, and that placement was deliberate. The study guide explains that the Founders considered lawmaking the most important power in government, so they described it before anything else. A law starts as a bill, a proposal written by members of Congress. Either chamber can start one, with one exception the Constitution spells out: bills for raising revenue have to begin in the House. A bill usually goes first to a committee that studies it and sometimes changes it. To pass, it needs a majority in both chambers: 218 votes in a full House of 435 and, for most bills, 51 in a full Senate of 100, or a majority of those present and voting when some members are absent. When the two chambers pass different versions, the bill often goes to a conference committee, with members of both, that tries to resolve the differences and writes a final version. Only then does the bill go to the President, who can sign it or veto it. A veto is not always the end: if two thirds of each chamber vote to pass the bill again, it becomes law anyway. USCIS lists three answers, and they all name the same body: Congress, the legislature, or the legislative branch. The words "U.S." and "national" in parentheses are optional. A frequent slip in the interview is answering "the President," because the signature is the step people see. The President takes part at the end, by signing or vetoing, but the bill is written and passed by senators and representatives. Neither the President nor the Supreme Court can pass a bill. To keep it straight, link the word legislative to legislation, which is what Congress produces. If you remember that this branch makes the laws, you can answer with whichever of the three names comes to you first.