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Analysis

Cohesion

All roll calls · whole term, 16 Jul 2024 – 28 Sept 2026 · topic Rule of law in member states (model-assigned) · political groups · per part-session · abstentions counted

How united do the groups vote — over time, and on the votes of each committee or topic?

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Period Term202420252026Last 6 months
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Cohesion over time

Agreement Index per part-session, from 0 (evenly split) to 1 (all voted the same). A vote counts for a bloc when at least 10 of its members and a third of its seats voted; a gap is a period with fewer than 20 votes counted.

Cohesion of the groups per part-session, 16 Jun 2025 – 19 Jun 2025 to 18 May 2026 – 21 May 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

16 Jun 2025 – 19 Jun 2025 → 18 May 2026 – 21 May 2026; each panel highlights one series, the others faint behind it.

Dashed: a period with fewer than 20 votes counted (no value) between two that have one.

Data as a table
Agreement Index per period (0 = evenly split, 1 = all voted the same), with the votes counted in it. — : fewer than 20 votes counted in the period (a vote counts for a bloc when at least 10 of its members and a third of its seats voted).
PeriodThe LeftGreensS&DRenewEPPECRPatriotsESN
16 Jun 2025 – 19 Jun 20250.9028 votes0.9828 votes0.9928 votes0.9628 votes0.8828 votes0.8528 votes0.9828 votes0.9828 votes
24 Nov 2025 – 27 Nov 20250.9841 votes1.0041 votes0.9941 votes0.9941 votes0.8741 votes0.7941 votes0.9341 votes0.9241 votes
15 Dec 2025 – 18 Dec 2025—17 votes—17 votes—17 votes—17 votes—17 votes—17 votes—17 votes—17 votes
20 Jan 2026 – 22 Jan 20261.0024 votes1.0024 votes0.8924 votes1.0024 votes0.9924 votes0.9024 votes0.7724 votes0.7924 votes
27 Apr 2026 – 30 Apr 20260.9232 votes0.9932 votes0.9232 votes0.9732 votes0.8532 votes0.8532 votes0.7932 votes0.9432 votes
18 May 2026 – 21 May 2026—18 votes—18 votes—18 votes—18 votes—18 votes—18 votes—18 votes—18 votes
Whole period0.950.990.960.980.900.830.880.92
Votes considered160160160160160160160160

Over the whole selection

Each group’s Agreement Index over every vote in the selection where enough of its members voted.

Cohesion: the Agreement Index (0–1) over the votes counted — votes where at least 10 members and a third of the seats voted; — : fewer than 20 such votes. Seats: members now. Order as the backend lists the blocs, not a ranking.
GroupCohesionVotes countedSeats
The Left 0.9516044
Greens 0.9916053
S&D 0.96160135
Renew 0.9816078
EPP 0.90160184
ECR 0.8316084
Patriots 0.8816085
ESN 0.9216027

The tables by committee and by topic are computed over a whole period: choose Whole period.

About these figures

What was counted, what was left out, and how.

  • 160 votes considered (all roll-call votes matching the filters; scope).
  • 0 of 6 decisions in the period had no final vote recorded by name (a show of hands or a count without names) and cannot be measured.
  • Cohesion is the Agreement Index: 1 when every voting member took the same position, 0 when the bloc split evenly three ways (method). A bloc counts on a vote only when at least 10 of its members and a third of its seats voted; the non-attached have no group cohesion.
  • Months are offered for all roll calls only, and a month needs at least 20 votes.
  • Each member is counted in the group they belonged to on the day of the vote (group at the date).
  • Roll calls are not a random sample: final votes on laws are recorded by name, most other roll calls because a group asked for it. A group’s line is inferred from its members’ votes; the Parliament publishes no whip.
  • Methods: Cohesion (Agreement Index) v1, Final votes and all roll calls v1, Group at the date of the vote v1.
  • Data as of 28 Sept 2026, 03:25 UTC (data stamp 5a7357168c2a, code 6d4005c55bde; what the stamp is).
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Sources & citation

Where the facts on this page come from, and how to cite it.

Data source
Licensed CC BY 4.0.
Data version
data version 5a7357168c2a (28 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1 · methods
Retrieved
28 September 2026

Cite as

EU Parl Watch Research (2026). “Cohesion — All roll calls · whole term, 16 Jul 2024 – 28 Sept 2026 · topic Rule of law in member states (model-assigned) · political groups · per part-session · abstentions counted”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&topic=justice%2Frule-of-law&to=2026-09-28 (retrieved 28 September 2026). Data: European Parliament Open Data, https://data.europarl.europa.eu/ (CC BY 4.0); data version 5a7357168c2a (28 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1.
BibTeX
@misc{epw-analysis-2026-09-28,
  author = {{EU Parl Watch Research}},
  title = {{Cohesion — All roll calls · whole term, 16 Jul 2024 – 28 Sept 2026 · topic Rule of law in member states (model-assigned) · political groups · per part-session · abstentions counted}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&topic=justice%2Frule-of-law&to=2026-09-28}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&topic=justice%2Frule-of-law&to=2026-09-28},
  urldate = {2026-09-28},
  publisher = {EU Parl Watch Research},
  note = {Analysis. Data: European Parliament Open Data (CC BY 4.0); data version 5a7357168c2a (28 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1}
}