Important: how to vote for the Senate in Spain

The Spanish Senate is elected through provincial constituencies, with four seats per province and an allocation system that rewards the most-voted lists. The tactical voting proposal seeks to concentrate ballots on the candidates with the best chance of grabbing the last seat.

The debate over how to vote for the Senate resurfaces every time there is a general election in Spain. This time, a message circulating on social media sets out a specific guideline for PP and VOX voters: how to split their ballots to make the most of tactical voting. The underlying idea is that, in the Senate, votes do not translate into seats the same way as in the Congress.

## Four seats per province and an uneven allocation

The Senate is made up of senators elected in provincial constituencies. Each province elects four senators, except the islands and Ceuta and Melilla, which have a different number. The system is majoritarian: the three most-voted lists share the seats, and the fourth is left out. This means the fourth senator in each province is usually decided by a narrow margin.

The practical consequence is that voting for a party with little chance of finishing first or second may not result in a seat. Hence the logic of tactical voting: concentrating support on the candidates most likely to make it into the allocation.

## Why the message mentions PP and VOX

The message is expressly aimed at PP and VOX voters. The proposal suggests that, in certain provinces, splitting ballots between the two parties could change the final result. It is nothing new: similar guidelines circulated in previous elections, and parties usually make their own calculations about where it suits them to concentrate votes.

It is worth remembering that the Senate does not choose the Prime Minister. Its role is legislative and supervisory, and its composition can influence the passage of laws. That is why the distribution of seats matters, even though it does not decide who governs.

## A guideline circulating without official verification

The specific guideline being spread does not come from any electoral authority. It is a calculation circulating on social media that each voter can check against the data for their province. The general recommendation is to turn to official sources to learn about the candidates and the allocation system before deciding how to vote.