Mexico is best described as federation
Step-by-step explanation:
The description of a federation is the performance of bounding states or other societies with an agreement they will be administered under a unit of the central administration. Mexico is a federation encompassing 31 states and a Mexico City which is the capital city and its diverse crowded city.
The United Mexican States are a federation whose administration is democratic, representative and constitutional based on a presidential system according to the 1917 Constitution. Mexico City is a unique political group that refers to the federation as a whole and not to a particular state.