State governments of Mexico are those sovereign governments formed in each Mexican state.
Structured in accordance with the constitution of each state, state governments in Mexico are modeled on the federal system, with three branches of government — executive, legislative, and judicial, and are formed based on the congressional system. Mexico's central federal government, on the other hand, represents the United Mexican States before international bodies such as the United Nations.
The executive power is exercised by the executive branch, which is headed by the state's governor, advised by a cabinet of Secretaries that are independent of the legislature. Legislative power is vested upon the congress of the state. Judicial power is exercised by the various local tribunals (Ministerio de Justicia) and the state's Supreme Court of Justice.
Mexico is a federation of 31 free & sovereign states. All constituent states of the federation must have a republican form of government based on a congressional system. The executive power is vested upon a governor elected by first-past-the-post plurality without the possibility of re-election. The legislative power is vested upon a unicameral Congress whose composition is determined by the constitutions of each state, but must include first-past-the-post and proportional representation deputies & they must not be re-elected for the next immediate term. The judiciary is vested upon the tribunals that each state establishes in its constitution. The re-election of the ministers of justice is a prerogative established by each constituent state.