Smug ALVISE voters, take note

A calculation circulating on X claims that 2% of the vote for Alvise in Madrid costs Vox a seat and hands it to the PSOE, with Alvise winning no representation. We explain the arithmetic.

English · Original discussion in Spanish · Published

A calculation circulating on X claims that, with 2% of the vote for Alvise in Madrid, Vox loses a seat that goes to the PSOE while Alvise wins none. The figure is a seat-distribution hypothesis, not an election result.

The arithmetic spreading on social media is not a forecast, it is a simulation exercise. A message circulating on X claims that, in the Madrid constituency, a **2%** vote for Alvise is enough to snatch a seat from Vox and hand it to the PSOE, and that in that scenario Alvise wins no representation. The key lies in the largest-remainder allocation system: a handful of votes shifting from one party to another can change the last seat assigned without the new party reaching the required threshold.

## The 3% threshold and seat allocation

Madrid elects **37 deputies** to Congress, the largest constituency in Spain. Spain's electoral law requires a minimum of **3%** of valid votes to take part in the allocation. Below that barrier, votes become wasted paper for those who cast them. The circulating calculation assumes Alvise lands exactly on that **2%**, below the threshold, and that his votes elect no one.

## The tactical voting hypothesis

The message goes further and poses a counterfactual scenario: if that **2%** had gone to Vox, not only would Vox regain the seat lost to the PSOE, but Podemos could be left without representation in Madrid. The text itself admits that "I know it doesn't work that way", because voters do not transfer in blocs. It is an illustration of so-called tactical voting, not a prediction.

## What can and cannot be concluded

The simulation depends on an assumption that cannot be verified: that this specific **2%** would have chosen Vox in Alvise's absence. Vote-transfer studies show that voters of new parties are not reassigned mechanically. The figure helps to understand how seat allocation works, not to anticipate a result. Any voting decision is best made with the electoral law in front of you and a healthy distrust of social media simulations.

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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (5 replies).

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