Key facts
3
Branches of the federal government
Arts. I, II, III
2
Chambers of Congress: the Senate and the House
Art. I, § 1
Two-thirds
Vote needed in each chamber to override a veto
Art. I, § 7, cl. 2
Its powers are listed in the Constitution
The ConstitutionThe highest law of a country or state. It sets up the government, divides its powers and protects rights, and the United States and each state have their own.Read more in the glossary gives Congress a list of powers, including collecting taxes, borrowing money, coining money and regulating trade with other countries and among the states. Congress can also set the rules for becoming a citizen, run post offices, declare war, and raise an army and a navy. Under the Tenth AmendmentA change to a constitution, law or bill. In a legislature, an amendment is also a proposed change that members vote on before passing a bill.Read more in the glossary, powers not given to the federal government, and not denied to the states, are reserved to the states or to the people.
Three branches share the work
- Congress, made up of the Senate and the House of Representatives, writes federal laws and decides how federal money is spent. No money can leave the Treasury unless a law allows it.
- The president leads the executive branch, whose departments and agencies carry out federal laws. Each year the president also sends Congress a proposed budget.
- Federal courts decide cases about the Constitution, federal laws and treaties, along with some other disputes, such as those between two states.
Where you see it in daily life
You deal with federal law when you apply for a passport, which the US Secretary of State issues, or when you pay federal taxes or mail a letter. Bankruptcy cases also go to federal court. Many other everyday services come from local governments working under state law. Counties, cities and townships provide police and fire protection, road repair, water and sewer service, trash collection and parks.
When federal and state law conflict
The Constitution makes itself, and federal laws made under it, “the supreme Law of the Land.” If a valid federal law truly conflicts with a state law, the federal law wins. But the federal government can use only the powers the Constitution grants. It does not pick your governor, mayor, sheriff or school board, because state and local law decides how those officials are chosen.
This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land
Questions people ask
Is the federal government above the states?
Does the president make federal laws?
Does the federal government run my local police?
Sources
Checked November 4, 2026. Primary sources first, then official records, then nonpartisan research.
How these facts were checked: our promise. Every substantive fix is listed on the corrections page.
Keep going
Government
What are the three branches of the US government?
Congress makes laws, the president carries them out and the courts decide cases. See what each branch does and how it can check the other two.
Government
How does state government work?
Every US state has its own constitution, governor, legislature and courts. Learn what states decide and which state officials voters elect.
Laws
How do federal, state and local laws fit together?
Why federal, state and local laws can all apply to you, what the Supremacy Clause and preemption mean, and where local governments get their powers.