Mexico's Legislative and Executive Branches

Legislature: Congress of the Union (Bicameral)

• Chamber of Deputies (500): 300 single-member districts (FPTP), 200 proportional representation. 3-year terms.
• Senate (128): 96 three-seat districts (FPTP), 32 proportional. 6-year terms.

Each chamber has a President; Senate President also heads Congress.

Executive: President of Mexico

• Directly elected, 6-year term (sexenio), no re-election.
• Head of state and government.
• Appoints Cabinet (Secretaries of State).

Judiciary

Supreme Court of Justice (SCJN): 11 justices appointed by President, confirmed by Senate. Final constitutional interpreter.