Powers of the Union

The Powers of the Union (Poderes de la Unión, in Spanish) is a constitutional term to refer to the three branches of the Mexican government jointly:

These are the three branches of government, or powers, of the federated "Union" of the thirty-one constituent states. The Powers of the Union are also referred to as the Supreme Power of the Federation (Supremo Poder de la Federación).Mexico City is constitutionally defined as the federal district and seat of the "Powers of the Union".

...
Wikipedia