US Constitution Explained: President, Senate, Congress, Elections and 2026 Midterm Results
The United States Constitution is the supreme law of the country. It created a government with three branches, a President instead of a Prime Minister, a two-chamber Congress made up of the Senate and the House of Representatives, and a system in which citizens vote at the federal, state and local levels. Many readers search for the "US Prime Minister", "US ministers" or "US assembly". This guide explains what the US actually has in their place, how each part works, how the public takes part in elections, and what the November 2026 midterm elections changed in the Senate.
- Democrats won Congress: NBC News projects that Democrats will control both the House and the Senate when the new Congress starts in January 2027. [1]
- Seven Senate seats flipped: Democrats flipped Republican-held Senate seats in Iowa, Kansas, Ohio, Maine, North Carolina, South Carolina and Texas. [1]
- House margin: NBC's analysis says Democrats will win at least 258 of the 435 House seats, well above the 218 needed. Some races were still undecided at the time. [1]
- Until 3 January 2027: the current Senate still has 53 Republicans, 45 Democrats and 2 independents who caucus with the Democrats. [2]
Results stay unofficial until states certify them. Check the linked sources for final numbers before you rely on them.
- Constitution: signed in 1787, in force from 1789, with 27 amendments. [3]
- Head of government: the President. The US has no Prime Minister.
- Congress: 100 Senators (2 per state, 6-year terms) and 435 voting Representatives (2-year terms).
- Electoral College: 538 electors, and a candidate needs 270 to win the presidency. [4]
- Federal Election Day: the Tuesday after the first Monday in November.
- What is the US Constitution?
- The three branches of government
- The President and Vice President
- Is there a Prime Minister in the US?
- Cabinet: the US version of ministers
- Congress: the Senate and the House
- State assemblies and local government
- Checks and balances
- How elections work
- How the public can take part
- Current status: the 2026 midterms and the Senate
- Brainstorming: questions to think about
- Test your knowledge: US government quiz
- Frequently asked questions
- Sources
- Conclusion
1. What Is the US Constitution?
The Constitution was written in Philadelphia in 1787 and took effect in 1789. It sets out how the federal government is organised, what powers it has, and which rights people keep. It begins with the words "We the People", which signal that government gets its authority from citizens. [3]
| Part | What it covers |
|---|---|
| Article I | Congress (the legislative branch) |
| Article II | The President (the executive branch) |
| Article III | The Supreme Court and federal courts (the judicial branch) |
| Article IV | Relations among the states |
| Article V | How to amend the Constitution |
| Article VI | Constitution as the supreme law of the land |
| Article VII | Ratification |
| Amendments (27) | The first 10, the Bill of Rights (1791), protect rights such as free speech, religion and fair trial. Later amendments cover voting rights, term limits and more. |
Amending the Constitution is deliberately hard. It needs a two-thirds vote in both chambers of Congress (or a convention called by two-thirds of the states), then approval by three-fourths of the states. [3]
2. The Three Branches of Government
| Branch | Who | Main job |
|---|---|---|
| Legislative | Congress (Senate + House) | Makes laws, controls federal spending, oversees the executive |
| Executive | President, Vice President, Cabinet, federal agencies | Carries out laws, commands the armed forces, directs foreign policy |
| Judicial | Supreme Court and lower federal courts | Interprets laws and decides whether they follow the Constitution |
Splitting power this way is meant to stop any one person or group from controlling everything.
3. The President and Vice President
The President is both head of state and head of government. The President signs or vetoes bills, commands the military, appoints Cabinet members and judges (with Senate approval), and negotiates treaties (which need two-thirds of the Senate). The President serves a four-year term and can be elected to no more than two terms under the 22nd Amendment.
- Qualifications: at least 35 years old, a natural-born citizen, and a resident of the US for 14 years.
- Vice President: takes over if the President dies, resigns or is removed, and also presides over the Senate, voting only to break a tie.
- Who holds the offices now: Donald Trump is President in his second term, and JD Vance is Vice President.
- Succession: after the Vice President come the Speaker of the House, the Senate's President pro tempore, and then Cabinet officers.
4. Is There a Prime Minister in the US?
No. A Prime Minister belongs to a parliamentary system, such as the UK, India or Canada, where the leader comes from the legislature and needs its support to stay in office. The US uses a presidential system in which the President is elected separately from Congress and serves a fixed term.
| Feature | United States | Parliamentary systems (e.g. UK, India) |
|---|---|---|
| Chief executive | President | Prime Minister |
| How chosen | Electoral College after a national vote | Leader of the party or coalition with a majority in parliament |
| Term | Fixed 4 years, two-term limit | No fixed personal limit; depends on keeping majority support |
| Can the legislature remove the leader? | Only by impeachment and conviction | Yes, by a vote of no confidence |
| Head of state | Same person as head of government | Usually separate (monarch or president) |
5. Cabinet: the US Version of "Ministers"
The US has no ministers. Its closest equivalent is the Cabinet, made up of the heads of the executive departments, called Secretaries (for example the Secretary of State, Secretary of the Treasury and Secretary of Defense), plus the Attorney General. There are 15 executive departments. The President nominates each Secretary and the Senate must confirm them by majority vote. [5]
Cabinet members are not members of Congress, which is a key difference from many parliamentary systems where ministers must also sit in parliament.
6. Congress: the Senate and the House of Representatives
| Feature | Senate | House of Representatives |
|---|---|---|
| Members | 100 (2 per state) | 435 voting members, divided by state population |
| Term | 6 years, with about one-third up for election every 2 years | 2 years, with all seats up for election every 2 years |
| Minimum age | 30 | 25 |
| Citizenship | 9 years | 7 years |
| Leader | Presided over by the Vice President; Majority Leader runs daily business | Speaker of the House |
| Special powers | Confirms Cabinet members, judges and ambassadors; ratifies treaties; tries impeachments | Starts tax bills; impeaches federal officials |
What is a Senator?
A Senator represents a whole state. Every state has two, no matter how big or small, so California and Wyoming have equal weight in the Senate. Since the 17th Amendment (1913), Senators have been elected directly by voters. Before that, state legislatures chose them. Current Senate leaders are Majority Leader John Thune (Republican) and Minority Leader Chuck Schumer (Democrat). [2]
What is a Representative?
A Representative serves one congressional district. States with larger populations get more seats, and the count is updated after each 10-year census.
How a bill becomes law
- A member introduces a bill in the House or Senate.
- A committee studies it, holds hearings and may change it.
- The full chamber debates and votes on it.
- The other chamber passes the same version.
- The President signs it into law or vetoes it.
- Congress can override a veto with a two-thirds vote in both chambers.
7. State Assemblies and Local Government
The US is a federation. Each of the 50 states has its own constitution, governor and legislature. Most state legislatures have two chambers, and the lower chamber is called the House of Representatives, the House of Delegates or the Assembly, depending on the state (California, New York and Wisconsin use "Assembly"). Nebraska is the only state with a single chamber. [6]
- State level: governors, state legislatures and state courts handle education, most criminal law, driver licences and state taxes.
- Local level: counties, cities and school boards run policing, schools, roads and local services.
- Federal level: defence, immigration, currency, interstate trade and foreign affairs.
8. Checks and Balances
- Veto: the President can reject a bill, and Congress can override it with two-thirds of both chambers.
- Confirmation: the Senate approves Cabinet picks, federal judges and ambassadors.
- Judicial review: courts can strike down laws or actions that break the Constitution.
- Impeachment: the House can impeach a federal official by majority vote, and the Senate holds the trial. Removal needs a two-thirds vote.
- Power of the purse: only Congress can approve federal spending.
9. How Elections Work
Presidential elections (every 4 years)
- Primaries and caucuses: party members in each state pick delegates for their party's nominee.
- Conventions: each party formally nominates its candidate.
- General election: voters choose among candidates in November.
- Electoral College: citizens technically vote for electors. There are 538 electors (435 + 100 + 3 for Washington, D.C.), and 270 are needed to win. In most states the winner of the state vote takes all of its electoral votes. [4]
- Inauguration: the winner takes office on January 20.
Because of this system, a candidate can win the national popular vote and still lose the presidency. This has happened in several elections, including 2000 and 2016.
Congressional elections
- All 435 House seats are elected every two years.
- About one-third of the Senate is elected every two years, in staggered classes.
- Midterms happen halfway through a President's term and often serve as a verdict on the President.
10. How the Public Can Take Part
| Step | What to do |
|---|---|
| 1. Check eligibility | You must be a US citizen aged 18 or older by Election Day and meet your state's residency rules. Rules about people with past convictions vary by state. |
| 2. Register | Nearly every state requires voter registration before Election Day. Deadlines differ, and some states allow same-day registration. North Dakota does not require registration. [7] |
| 3. Learn your options | Many states offer early voting and mail-in ballots. ID rules differ by state. |
| 4. Research candidates | Compare party platforms, voting records and nonpartisan voter guides. |
| 5. Vote | Vote in primaries and the general election, including local races. |
Beyond voting: contact your Senators and Representative, attend town halls, volunteer for a campaign or election office, serve on a jury, respond to the census, join community groups, or run for office yourself.
11. Current Status: the 2026 Midterms and the Senate
The 2026 midterms were held on 3 November 2026. All 435 House seats and 35 Senate seats were up (33 regular elections and 2 specials). The new Congress takes office on 3 January 2027. [1][8]
| Body | Before the election | After the election (projected) |
|---|---|---|
| Senate | 53 Republicans, 45 Democrats, 2 independents caucusing with Democrats | Democrats projected to hold at least 54 seats, with Alaska and Mississippi still uncalled at the time of the sources checked |
| House | Narrow Republican majority | Democrats projected to win at least 258 of 435 seats |
Senate seats flipped from Republican to Democratic
| State | Newly elected Senator |
|---|---|
| Texas | James Talarico, who defeated Ken Paxton and is the first Democrat elected to the Senate from Texas since 1988 [1] |
| Maine | Troy D. Jackson, who defeated incumbent Susan Collins [9] |
| South Carolina | Annie Andrews [10] |
| Iowa | Add the certified winner's name here |
| Kansas | Add the certified winner's name here |
| Ohio | Add the certified winner's name here |
| North Carolina | Add the certified winner's name here |
Notable holds: Democrats kept battleground seats in Georgia and Michigan, where Abdul El-Sayed won in Michigan. In Florida, Republican Senator Ashley Moody kept her seat against Democrat Angie Nixon. [1][10]
Governors: Democrats also flipped governorships in Georgia, Ohio, Iowa, Texas and Nevada. [10]
12. Brainstorming: Questions to Think About
- Equal Senate seats: every state gets two Senators, regardless of population. Does this protect small states or give them too much power?
- Electoral College: should the presidency be decided by the national popular vote instead?
- Midterm swings: why does the President's party often lose seats in midterm elections?
- Divided government: when the President and Congress belong to different parties, does it produce compromise or gridlock?
- Presidential vs parliamentary: which system is more stable, and which is more accountable?
- Participation: what could make more eligible citizens register and vote?
These questions have no single correct answer. Try forming an argument for each side and compare it with the sources below.
Test Your Knowledge: US Government Quiz
Answer the 10 questions below. After each answer, you will see the correct response and a short explanation.
US Government Knowledge Quiz
Frequently Asked Questions
1. Does the United States have a Prime Minister?
No. The US has a President who is both head of state and head of government. The Prime Minister role exists in parliamentary systems such as the UK and India.
2. Who is the head of the Senate?
The Vice President is the President of the Senate and votes only to break ties. The Majority Leader, chosen by the majority party, runs daily Senate business.
3. How long is a Senator's term?
Six years. About one-third of the Senate is up for election every two years.
4. How many Representatives are in the House?
435 voting members. Seats are shared among states by population, and Washington, D.C. and territories have non-voting delegates.
5. Who can vote in US federal elections?
US citizens aged 18 or older who meet their state's registration and residency requirements. Rules on registration deadlines and ID vary by state.
6. What is a midterm election?
A federal election held halfway through a presidential term. All House seats and about one-third of Senate seats are on the ballot.
7. Who are the ministers in the US?
The US has Cabinet Secretaries instead of ministers. They head executive departments such as State, Treasury and Defense, and the Senate confirms them.
8. Who controls the Senate after the 2026 midterms?
Democrats are projected to control the Senate from 3 January 2027, after flipping seven Republican-held seats. Until then, Republicans hold the majority.
Sources
- NBC News. Midterms 2026 highlights: Democrats win control of Congress (4 November 2026).
- U.S. Senate. Party Division.
- National Archives. The Constitution of the United States: a transcription.
- National Archives. U.S. Electoral College.
- The White House. The Cabinet.
- USAGov. State governments.
- USAGov. Voter registration.
- Ballotpedia. Election results, 2026: U.S. Senate.
- The New York Times. Newly elected Democrats who flipped seats (6 November 2026).
- NBC4 Washington. Live updates: Democrats win control of the House and Senate (4 November 2026).
Conclusion
The US system divides power between a President, a two-chamber Congress, the courts and the states. It has no Prime Minister, and its "ministers" are Cabinet Secretaries. Citizens take part by registering, voting in primaries and general elections at every level, and engaging with their representatives between elections. The 2026 midterms show how quickly the balance of power can shift: if the projections hold, Democrats will control both chambers from January 2027. Check the official results as states certify them, and share this guide with anyone who wants a clear picture of how US government works.
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