15th parliament
Congress in data
How the parties have voted in the 2,173 roll-call votes of this parliament: who votes with whom, who wins the votes and which government decrees fell.
- 2,173roll-call votes in the plenary
- 13government decree-laws struck down
- 39%of votes in which PP and PSOE voted the same way
Votes from 19 September 2023 to 30 September 2026. Those of 1 and 2 October 2026 are not yet in the open data.
Three years of votes, using Congress's own open data.
Who votes with whom
If two parties almost always vote the same way, they are stable allies; if almost never, they are in opposing blocs. PP and PSOE have voted the same way in 39% of the votes. The pairs that agree most are PP and UPN (91%), ERC and EH Bildu (85%) and PSOE and Sumar (83%).
The partners who backed the 2023 investiture do not vote as a bloc. The PSOE agrees with the PNV in 75% of the votes and with Junts in 62%. And PP and Vox, the two largest opposition parties, have voted the same way 63% of the time.
PP and PSOE voted the same way in 39% of the votes in this parliament
Share of roll-call votes in the plenary in which two parties voted the same way (2,173 votes, from 19 September 2023 to 30 September 2026)
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Who wins the votes
The PSOE, the governing party, has been on the winning side in 84% of the votes of this parliament, and the PP, the main opposition party, in 68%. The gap has narrowed: in 2024 the PSOE won between 84% and 94% of the votes each quarter, and in 2026, between 71% and 81%. The PP has gone from between 58% and 74% in 2024 to between 75% and 80% in 2026.
The PSOE has been on the winning side in 84% of the votes; the PP, in 68%
Share of votes in which each party voted the same way as the final result, by quarter
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The decrees that fell
A decree-law comes into force when the government approves it, but Congress has to validate it within a month. This parliament has struck down 13: the 11 already in the open data and the two rental decrees struck down on 2 October 2026, three days before the election was called.
In the 11 with a published vote, PP and Vox always voted against, and Junts in 10 of them. PSOE, Sumar, ERC and EH Bildu always voted in favour. One more decree, 8/2023, tied at 171 votes and was saved in the repeat vote, which is not in the open data.
Congress has struck down 13 government decree-laws in this parliament
Each party's vote on the decree-laws struck down (11 with the vote published in the open data)
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These figures count every vote equally: a motion with no legal effect weighs the same as a law. They show alliances and trends, not the importance of what was voted on.
CG-EX
Explore the votes since 2011
16,809 roll-call votes in the plenary, from the X (2011-2015) parliament to the XV (2023-2026). Pick one or more parliaments (they are added together), the type of vote and how to see it. The page link keeps your selection.
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How it is made
- We use every roll-call vote in the plenary published by Congress. Motions passed by unanimous assent are not included.
- A party's vote is the option chosen by the majority of its deputies present. The Mixed Group is split by party.
- The outcome of each vote is calculated by simple majority. Ties that were repeated outside the open data are corrected with official sources.
- The data can be downloaded from each chart. Full methodology.
Sources: Congress of Deputies, open data on votes, Ministry of the Presidency: validation of Royal Decree-law 8/2023 (10 January 2024), BOE (official gazette): repeal of Royal Decree-law 26/2026.