How are the 128 Senate seats allocated in Mexico?

How are the 128 Senate seats allocated in Mexico?

• A. 128 seats allocated purely by national proportional representation.
• B. 96 seats from state-level results (two per state) and 32 seats from national proportional representation.
• C. 64 seats from districts and 64 from lists.
• D. All 128 seats from state-level results.

Answer: (B)

Mexico’s Senate uses a mixed system that combines state-level majoritarian results with nationwide proportional representation. There are 32 states (including Mexico City), and each state elects three senators, for a total of 96 seats from the states. In each state, the party with the most votes wins two seats and the party with the second-most votes wins the remaining seat. This ensures the largest state-wide winner gains two seats while still providing representation for the second-place party within the state. The other 32 seats are filled through a national proportional representation system using party lists, which balances overall party strength across the country. Put together, 96 seats come from state-level results and 32 come from national proportional representation, making 128 in total.

Mexico’s Senate uses a mixed system that combines state-level majoritarian results with nationwide proportional representation. There are 32 states (including Mexico City), and each state elects three senators, for a total of 96 seats from the states. In each state, the party with the most votes wins two seats and the party with the second-most votes wins the remaining seat. This ensures the largest state-wide winner gains two seats while still providing representation for the second-place party within the state.

The other 32 seats are filled through a national proportional representation system using party lists, which balances overall party strength across the country. Put together, 96 seats come from state-level results and 32 come from national proportional representation, making 128 in total.