Spanish electoral systems: Senate voting and D’Hondt method explained

In Andalusia, voters electing Senate representatives follow specific rules where they can select up to three candidates per province to fill four available seats. This process allows for individual selection, meaning voters can choose candidates from different political parties rather than being restricted to a single party list. Marking more than three candidates invalidates the vote.

In the broader Spanish electoral context, the D’Hondt method is used to distribute seats in various elections, including the Congress of Deputies. The system functions by dividing the votes received by each party and allocating seats based on the resulting quotients. The effectiveness of this method is influenced by the size of provincial constituencies and the 3% electoral barrier, which is calculated per province. These factors contribute to discussions regarding strategic voting and the mathematical differences between proportional representation and territorial representation.