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Posts by Jac Larner

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On leaders, Rhun ap Iorwerth is favourite for First Minister in head to head comparisons, with caveat that a clear majority just aren't sure

Will be doing some more on next few days on attitudes to government formation and issues with @jamesdgriffiths.bsky.social

1 hour ago 1 3 0 0
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Tactical voting likely to play a big role in driving vote choice (yes, you can tactically vote in this system)

Majority want to stop a Reform government and see Plaid as best placed to stop them, but progressive fragmentation remains Reform's route to being largest party (though not government)

1 hour ago 3 4 1 1
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Welsh polling remains very noisy

Reform has dropped off in other polling but steady here

29% would be Plaid's worst Senedd VI from YG since Nov 24 (sceptical of this given other trends both in Wales and UK)

Lab bounce driven by MiC polling, but some small hope for them

1 hour ago 5 4 1 0
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NEW ITV Wales YouGov MRP has Plaid and Reform neck and neck in Senedd vote intention

Impossible to say who would be largest party in terms of seats but neither would be close to majority

Would almost certainly result in Plaid led government as they have more potential allies in the Senedd 🧵👇

1 hour ago 16 19 4 2
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YouGov's first MRP of the 2026 Senedd election shows Plaid Cymru on course to be the largest party

PC: 43 (+19 from 2021*)
Ref: 30 (+30)
Lab: 12 (-32)
Grn: 10 (+10)
Con: 1 (-25)
LD: 0 (-2)

*notional results had the last election been conducted on the new system based on data from Dr Jac Larner

3 weeks ago 87 38 8 38

I don't think ITV published it yet. Seat projection is YouGov's own - they produced constituency level vote estimates and from there it's straightforward to calculate the seats. They did use by 2021 notional results as a baseline but otherwise I haven't been involved

3 weeks ago 1 0 1 0

Good question - a constituency poll overstated it but those are notoriously difficult to do. Reform probably outperformed their national polling but it was a FPTP race (encouraging two horse race) & attracted an unusual amount of media attention. Basically hard to take any real conclusions from it

3 weeks ago 2 0 1 0
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Finally, there is some evidence now that Reform's rise in Wales is plateauing

3 weeks ago 21 9 0 0
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With the full range of constituency estimates YouGov provides (including effective confidence intervals) a simulation of seat projections look something like this

3 weeks ago 19 11 1 0

New poll in Wales, this time with constituency level estimates from YouGov(🥳). Polling in Wales has been pretty noisy over the last 24 months with some big house effects, but the general vote intention trend is clear - May 2026 is a two-horse race between Plaid Cymru and Reform

3 weeks ago 40 35 3 3
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This is great

1 month ago 2 0 0 0

This loss of talent will have long term consequences for our national research base. Government and funders should do something about it.

1 month ago 98 30 2 1

SES scoop out
@scotvoting.bsky.social

1 month ago 6 5 0 0

Fantastic stuff, as ever, from Nye on the decline of two cornerstones of Welsh identity over the last century: Rugby and the Labour Party

2 months ago 5 1 1 0
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Ahead of #Senedd26 @jaclarner.bsky.social joined the BBC's Chris Mason in #Pontypridd to discuss the big shifts in Welsh politics that suggest a century of electoral dominance by the Labour Party is being challenged by Reform UK and Plaid Cymru, who are battling to top the polls in #Wales.

2 months ago 7 5 1 1
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BJPolS abstract discussing the impact of political scandals on perceptions of leaders, focusing on the UK and Scotland. The study explores themes like containment and contrast in institutional reactions to such scandals.

BJPolS abstract discussing the impact of political scandals on perceptions of leaders, focusing on the UK and Scotland. The study explores themes like containment and contrast in institutional reactions to such scandals.

From November 2025 -

Political Scandals and Vertical Contagion in Multilevel Systems - cup.org/47wHeJB

- @jaclarner.bsky.social, Robert Johns, @ailsahenderson.bsky.social, @frasmcm.bsky.social & @cjcarman.bsky.social

#OpenAccess

3 months ago 3 3 0 0

For those interested, raw data download is here along with some basic cross tabs: github.com/jaclarner/Ca...

4 months ago 10 10 0 0

here's cross tabs: github.com/jaclarner/Ca...

Raw data up by midday

4 months ago 1 0 0 0

here are basic cross tabs: github.com/jaclarner/Ca...

raw data up by midday

4 months ago 3 0 0 0
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Why consolidate within blocs? Labour→Plaid switchers: 40% say Plaid better "stands up for Wales", 30% tactical. Tory→Reform: 37% immigration, 25% protest. Different motivations, same pattern: consolidation not conversion.

4 months ago 3 1 0 0
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Current polling shows the scale: Plaid & Reform both ~30%, Labour & Conservatives both ~10%. But crucially, the total size of each bloc hasn't really dramatically shifted. Few voters are crossing ideological divides - they've concluded different parties better represent their existing values.

4 months ago 4 0 1 0
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The evidence: In 2021, Labour dominated Welsh-identifying progressives; Plaid held perhaps a quarter. Today those proportions have nearly inverted. Mirror image on the right: Conservatives commanded British-identifying voters in 2021; Reform has now absorbed most of that support.

4 months ago 2 1 1 0

New 🏴󠁧󠁢󠁷󠁬󠁳󠁿 data paints picture of consolidation within two blocs: a Welsh-identifying/progressive bloc (with Plaid as largest party) and a British-identifying/conservative bloc (with Reform as largest).

Adds to evidence that 2026 is shaping up to be 2-horse race between Plaid Cymru and Reform UK 🧵

4 months ago 20 11 2 1
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There's not much political & social science can point to and say 'we know almost certainly that this will happen', but accommodating the far-right and subsequently losing is one of them.

5 months ago 13 3 0 0
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Women in Wales are being jailed more often Research has been carried out by a team at Cardiff University

NEWYDD - Adroddiad gan @robdjones.bsky.social yn dadansoddi'r data diweddaraf ar garchardai a charchariad yng Nghymru 👇

NEW - Report from Dr Robert Jones analyses the latest data on prisons and imprisonment in Wales 👇 #Wales #Cymru #Senedd26
www.walesonline.co.uk/news/wales-n...

5 months ago 5 13 1 1

Paper is a collab effort w/ awesome @scotvoting.bsky.social team; @robjohns75.bsky.social @frasmcm.bsky.social @ailsahenderson.bsky.social & @cjcarman.bsky.social . Thanks also to UK and Scot Govs for providing high profile scandals while we were able to collect data

5 months ago 4 0 0 0

🚨 NEW in @bjpols.bsky.social : When Partygate hit Westminster, trust in Scottish politicians increased. Our experiments reveal a "contrast effect" - scandals at one level can make the other look better by comparison. Who lost most trust in Westminster? Scottish unionists. Read now #OpenAccess 👇

5 months ago 49 32 1 1

Almost a decade on, Wales' fiscal reforms deliver nearly £1 Billion windfall but fall short on empowering the Senedd

Major new report calls for tripling of borrowing powers and full income tax control as Fiscal Framework reforms deliver unprecedented budget boost:👇
www.cardiff.ac.uk/__data/asset...

5 months ago 2 5 0 3

This is shockingly uninformed about how polling works

5 months ago 8 2 3 0
Senedd Election Simulator Senedd Election Simulator - Visualize Welsh election results

Diolch Thom - you can get a general idea of it here and see individual constituency estimates. This isn’t exactly how i calculate mine but it does a good job jaclarner.github.io/senedd_ethol...

6 months ago 1 0 1 0