Each branch of government has an important role. For example, the United States is classified as a constitutional republic with three branches: Executive, Legislative and Judicial.
Each branch has an important role. Additionally, each branch 'checks' each other. Here is a basic rundown of what each branch does, who runs them, and how they check each other.
Executive branch - Carries out laws (president, vice president, Cabinet, most federal agencies) The president can veto legislation created by Congress and nominates heads of federal agencies.
Legislative branch —Makes laws (Congress, comprised of the House of Representatives and Senate) Congress confirms or rejects the president's nominees and can remove the president from office in exceptional circumstances.
Judicial branch —Evaluates laws (Supreme Court and other courts) The Justices of the Supreme Court, who can overturn unconstitutional laws, are nominated by the president and confirmed by the Senate.
