The Congress of the Union is the legislative branch of the government of Mexico. It consists of two chambers: the Senate and the Chamber of Deputies. The Congress is responsible for making laws, approving the budget, and overseeing the executive branch. Members of both chambers are elected by the public and serve specific terms. The Senate has 128 members, while the Chamber of Deputies has 500 members. The Congress meets in the Palacio Legislativo de San Lázaro in Mexico City. It plays a crucial role in shaping national policy and representing the interests of the Mexican people.