Iran War, Trump and Sánchez: polls reveal a divided Spain but mostly against the war

The war between the United States, Israel and Iran and the diplomatic clash between Donald Trump and Pedro Sánchez are shaking Spanish politics. Two surveys published by EL MUNDO and EL PAÍS show a deeply polarized country, although with a majority rejection of military intervention and significant support for the Government's position

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WhatsApp Image 2026 03 05 at 17.31.35

WhatsApp Image 2026 03 05 at 17.31.35

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Two surveys draw a Spain divided by the war: Iran and the confrontation between Donald Trump and the Government of Pedro Sánchez have opened a strong political division in Spain, according to two polls published in the last hours by EL MUNDO and EL PAÍS.

The Sigma Dos survey for EL MUNDO reflects a society practically split into two blocks regarding the diplomatic clash between Madrid and Washington. According to that poll, 46.8% supports Sánchez's decision to confront Trump, while 47% positions itself against.

However, the study also shows a clear ideological fracture: left-wing voters are mostly concentrated against U.S. military intervention, while the right-wing electorate shows greater support for the military operation.

The rejection of the war reaches 68%, according to the 40dB survey for EL PAÍS

Another poll, conducted by 40dB for EL PAÍS and Cadena SER, offers a clearer picture of the general sentiment regarding the war. According to this survey, 68.2% of Spaniards reject the military intervention of the United States and Israel against Iran, compared to 23.2% who support it.

The rejection is especially high among left-wing voters:

  • PSOE: 91% against the intervention
  • Podemos/Sumar: around 96% against

Among right-wing voters, the support is greater, although not a majority in all cases either:

  • Vox: 53% in favor
  • PP: 36% in favor

Majority in favor of Spain not participating in the war

The 40dB survey also shows majority support for several decisions adopted by the Spanish Government during the crisis.

Among them:

  • 61.5% approves the sending of a Spanish frigate to reinforce the defense of Cyprus within a European deployment.
  • 56.9% supports the decision not to militarily support the United States and Israel.
  • 53.2% approves vetoing the use of the Rota and Morón bases for operations related to the conflict.

These measures have provoked a strong diplomatic clash with Washington after Donald Trump harshly criticized Spain for its refusal to collaborate militarily.

The left-wing electorate backs the confrontation with Trump

The Sigma Dos poll for EL MUNDO shows that the Government's position towards the United States has a strong mobilizing effect among left-wing voters.

According to that survey:

83.4% of PSOE voters oppose the American attack.
92.7% of Sumar voters also reject it.

Furthermore, 78.5% of socialist voters and 94.5% of those from Sumar support the Government's refusal to allow the use of American military bases in Spain.

In the block on the right, support for military intervention is greater:

  • 57.3% of PP voters position themselves in favor.
  • 67.1% of Vox voters support the military operation.

The Spanish prefer Europe as a partner, but part of the left also looks to China

Another of the striking data from the Sigma Dos survey is the perception about Spain's international alliances.

The majority of voters considers that the country should rely primarily on Europe, but among left-wing voters an additional option appears.

According to the poll:

  • 38% of PSOE voters also mention China as a possible strategic partner.
  • 45.2% of Sumar voters likewise point to the Asian country.
  • Among PP and Vox voters, in contrast, the United States appears as a preferred ally alongside European countries.

Widespread rejection of the Iranian regime, but not at any price

Despite the differences over military intervention, there is a point of consensus in both surveys: a broad majority of citizens rejects the regime of the ayatollahs in Iran.

According to the Sigma Dos survey, eight out of ten Spaniards desire the end of the Iranian regime, including majorities on both the left and the right.
However, there is also a majority rejection of the military option: 62.2% of respondents oppose achieving that objective through an armed attack.

The war and the clash with Trump reorder the political debate in Spain

The military escalation in the Middle East has fully burst into the Spanish political debate and has opened a new line of confrontation between the Government and the opposition. The polls reflect a complex scenario: majority rejection of the war, relative support for the Government's position, and strong polarization between left and right. The conflict with Iran and the tension with Washington have thus become one of the factors that are most influencing Spanish politics in the midst of an electoral cycle.