How does a bill become a law?

The short version, and then the honest version

The textbook answer is a flowchart: introduced, committee, floor, other chamber, President. That is accurate and it is also misleading, because it describes the path a bill takes if everything goes well, and almost nothing goes well. Of the roughly ten thousand bills introduced in a typical two-year Congress, a few hundred become law.

The useful question is not “what are the steps” but “who can stop it, and at which step”. There are six or seven places where one person or a small group can end a bill without ever voting it down.

The seven steps

1. 01

   Introduction

   A member drops the bill in the hopper (House) or hands it to a clerk (Senate). It gets a number: H.R. for House bills, S. for Senate. Anyone can write a bill, but only a member can introduce one.

2. 02

   Committee referral

   The bill goes to the committee with jurisdiction. This is where most bills stop. The chair decides whether to schedule a hearing or a markup, and nothing obliges them to. No vote is taken; the bill simply never moves.

3. 03

   Markup and report

   If the committee acts, it amends the text line by line and votes to report the bill to the full chamber, with a written report explaining it.

4. 04

   Floor action

   The House sets terms of debate through the Rules Committee. The Senate normally needs unanimous consent to proceed, or 60 votes to end debate. Amendments are offered and voted on, then the chamber votes on passage.

5. 05

   The other chamber

   The whole thing repeats. The second chamber may pass the same text, amend it, ignore it, or pass its own version.

6. 06

   Resolving differences

   Both chambers must pass identical text. They either send amendments back and forth until the texts match, or convene a conference committee to write one version that both then vote on.

7. 07

   The President

   Sign, veto, or do nothing. Doing nothing for ten days while Congress is in session lets the bill become law without a signature. Doing nothing when Congress has adjourned kills it — a pocket veto, which cannot be overridden.

Where bills actually die

In committee, silently. This is the big one. A committee chair who does not want a bill to move simply does not schedule it. There is no vote to point at, no record of opposition. The bill is not defeated; it is never considered. Discharge petitions exist to force a bill out of committee in the House, but they require 218 signatures and are used successfully a handful of times per decade.

At the Senate’s 60-vote threshold. The Senate does not usually vote on whether to pass a bill. It votes on whether to stop debating it, and that takes 60 of 100. A bill with 55 supporters fails not because a majority opposed it but because a minority declined to end debate. This is the filibuster, and it is the single most consequential rule in the chamber.

In the difference between two versions. Both chambers passing “the same bill” is not enough. They must pass the same text. A House bill and a Senate bill on the same subject, both passed, both popular, are still two bills and neither is law.

On the President’s desk. A veto sends the bill back. Congress can override with two-thirds of both chambers — 290 House votes and 67 Senate votes — which almost never assembles for anything contested.

What the flowchart leaves out

Most laws are not standalone bills. A provision that could never pass on its own rides along in a larger vehicle: an appropriations bill that has to pass, a defense authorisation, a continuing resolution. This is why bills that fund the government run to thousands of pages. The must-pass vehicle is where everything else gets a ride.

There is a route around the 60-vote bar. Budget reconciliation lets certain fiscal legislation pass the Senate with 51 votes, which is why so much major policy is written to look like a budget measure. It comes with strict limits on what may be included — see budget reconciliation, in plain terms.

Timing is a weapon. A bill introduced late in a two-year Congress is competing for floor time that does not exist. Everything not passed when a Congress ends dies completely and must be reintroduced from step one in the next one.

How to read coverage of a bill

• “The House passed it” means it has cleared roughly a third of the path. It is not law and may never be.
• “It has 60 co-sponsors” is not the same as 60 votes. Co-sponsorship costs nothing.
• “It failed in the Senate” usually means a cloture vote fell short of 60, not that a majority voted against it. Check which vote it was.
• “It’s stuck in committee” means the chair has not scheduled it. There is rarely anything more to it than that.

The roll call for any vote is public. congressvotetracker.org files every recorded House and Senate vote by member.