The Legislative Branch

Congress - The branch of government that makes laws

Overview

The legislative branch is one of the three branches of the U.S. federal government, established by Article I of the Constitution. It is responsible for making federal laws, declaring war, approving presidential appointments, and controlling the federal budget.

The Congress of the United States

Congress is a bicameral legislature, meaning it has two chambers: the Senate and the House of Representatives.

The Senate

100 Senators — Two senators from each state, serving 6-year terms.

Leadership

  • President: Vice President of the United States
  • President Pro Tempore: Senior majority party senator

Key Powers

  • Confirming presidential appointments (Cabinet, judges)
  • Ratifying treaties
  • Conducting impeachment trials
  • Approving the federal budget

House of Representatives

435 Representatives — Based on state population, serving 2-year terms.

Leadership

  • Speaker of the House: Leader of the majority party

Key Powers

  • Originating revenue bills
  • Initiating impeachment proceedings
  • Electing the President in case of electoral college tie
  • Approving presidential appointments

117th Congress (2025-2027)

Republican majority in Congress as of February 2026.

53
Senate Republicans
45
Senate Democrats
222
House Republicans
213
House Democrats

How a Bill Becomes Law

  1. Introduction: A bill can be introduced in either the House or Senate
  2. Committee Action: The bill is sent to a committee for study and debate
  3. Floor Action: The bill is debated and voted on in the originating chamber
  4. Second Chamber: The bill goes to the other chamber, which may approve, reject, or amend
  5. Conference Committee: Differences between versions are reconciled
  6. Presidential Action: The President signs the bill into law or vetoes it

Constitutional Foundation

"All Bills for raising Revenue shall originate in the House of Representatives; but the Senate may propose or concur with Amendments as on other Bills."

— Article I, Section 7 of the U.S. Constitution

Article I grants Congress enumerated powers and the Necessary and Proper Clause, allowing Congress to make laws "necessary and proper" for carrying out its duties.