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Branches of the U.S. government

Learn about the executive, legislative, and judicial branches of the U.S. government.

What are the three branches of government?

The Constitution of the United States divides the federal government into three branches: legislative, executive, and judicial. This ensures that no individual or group will have too much power.

Legislative branch

The legislative branch is made up of Congress (the Senate and House of Representatives) and special agencies and offices that provide support services to Congress.

The legislative branch’s key roles include:

• Drafting proposed laws
• Confirming or rejecting presidential nominations for heads of federal agencies, federal judges, and the Supreme Court
• Surveying the budget
• Having the authority to declare war

Executive branch

The president, the vice president, and the president's cabinet are the members of the executive branch.

The executive branch’s key roles include:

• The president is the head of state, leader of the executive branch, and commander in chief of the United States armed forces.
• The vice president supports the president. If the president is unable to serve, the vice president becomes president. The vice president also presides over the U.S. Senate and breaks ties in Senate votes.
• The cabinet members serve as advisors to the president. They include the vice president, heads of executive departments, and other high-ranking government officials. Cabinet members are nominated by the president and must be approved by the Senate.

The executive branch also includes executive departments, independent agencies, and other boards, commissions, and committees.

Judicial branch

The judicial branch includes the Supreme Court and other federal courts.

It evaluates laws by:

• Interpreting the meaning of laws
• Applying laws to individual cases
• Deciding if laws violate the Constitution

How each branch of government provides checks and balances

The ability of each branch to respond to the actions of the other branches is the system of checks and balances.

Each branch of government can change acts of the other branches:

• The president can veto legislation created by Congress. He or she also nominates heads of federal agencies and high court appointees.
• Congress confirms or rejects the president's nominees. It can also remove the president from office in exceptional circumstances.
• The Justices of the Supreme Court, nominated by the president and confirmed by the Senate, can overturn unconstitutional laws.

LAST UPDATED: September 22, 2025

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