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SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination

Leaders of three nationalist parties met in Cardiff to call for independence referendums.

AI-assisted coverage comparison, editor-supervised · How this was made

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Scottish Nationalist Party (SNP) leader John Swinney, Rhun ap Iorwerth of Plaid Cymru in Wales, Mary Lou McDonald, president of Irish Republicans Sinn Fein and Michelle O'Neill, vice president of Irish Republicans Sinn Fein (AFP: Adrian Dennis)

What this story says

  • Leaders of Scotland's SNP, Wales' Plaid Cymru, and Northern Ireland's Sinn Féin met in Cardiff on 14 September 2026.
  • They signed a memorandum of understanding calling for referendums on independence for their nations and a united Ireland.
  • The agreement stated that no UK government has the right to block democracy or prevent people from deciding their future.
  • The meeting occurred after US President Donald Trump publicly supported Irish unity during a visit to Dublin.

Who covered it

Left 50%(18)Centre 14%(5)Right 36%(13)

Percentages are shares of the 36 outlets carrying a published leaning rating. 38 of the 74 outlets we know ran this story carry no rating and are not counted in them. Coverage measured .

Trust

78/100

Craft

95/100

Hype

28/100

74 sources · methodology

Thin on the right so far

Only 13 of the 36 outlets with a published leaning rating that ran this story are rated right.

This story is still being watched, so it is a count and not yet a finding. Coverage keeps arriving for hours after an event, and a side that has published nothing this morning may publish by tonight. If it is still true when we stop checking, we will say so plainly.

Leaders of the Scottish National Party (SNP), Plaid Cymru in Wales, and Sinn Féin in Northern Ireland met in Cardiff on Monday, 14 September 2026. They signed a memorandum of understanding that declared their nations' right to self-determination and called for the UK government to hold referendums on independence for Scotland, Wales, and a united Ireland. The agreement stated that no Westminster government has the right to block democracy or undermine the principle that people will decide their own future. The meeting took place in the wake of US President Donald Trump's public comments supporting Irish unity during a visit to Dublin the preceding weekend.

Disagreement on Trump's role

While several reports noted US President Donald Trump's comments on Irish unity, the Evening Standard reported that he declined to comment on Scottish independence. Other reports did not specify whether Trump commented on Scottish independence or not.

What the coverage left out

None of the centre-rated outlets ran this story. The right-rated reports did not mention the memorandum of understanding's call for referendums on independence for Scotland and Wales, focusing instead on Michelle O'Neill's comments about Irish unification and Donald Trump's remarks.

Still developing. We have re-checked which outlets are covering this 7 times, most recently on 15 Sept 2026, 13:00, and will add the sides that appear.

How other outlets pictured it

Which photograph to run is each newsroom’s own choice. The leaning beside a name is that outlet’s published rating, not a claim that the pictures divide along it. Every picture is shown from the outlet’s own server and links to the article it ran in.

SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination
Evening StandardRight

How each side covered it

Our own reading of the reporting listed below, written from the outlets’ articles rather than quoted from them. The reasoning is set out on our methodology page.

Left

18 rated outlets

  • Seven left-rated reports led on the meeting of the leaders of Sinn Féin, the SNP, and Plaid Cymru and their signing of a memorandum of understanding. These reports highlighted the call for self-determination and independence referendums for Scotland, Wales, and a united Ireland. The timing of the meeting in relation to US President Donald Trump's comments supporting Irish unity was also a prominent feature. ABC Australia, for example, quoted the agreement stating, 'Our nations have the right to self-determination. No Westminster government has the right to block democracy or undermine the principle that our people will decide their own future.' Dnevni list Danas reported that the parties declared the right to self-determination, with the headline stating, 'Our People Will Decide Their Own Future.' Perspectivemedia.com and The Independent also focused on Michelle O’Neill's statement that Trump's comments show the debate is 'very much alive'.

Centre

5 rated outlets

  • BBC News led on the statement that Plaid Cymru, SNP and Sinn Féin leaders urged the UK government to prepare for constitutional change. The Economic Times reported that the pact does not itself dissolve the United Kingdom and that Westminster would still need to participate in any Scottish or Welsh independence process.
  • Internewscast noted that Donald Trump voiced support for a united Ireland, while RTÉ recorded John Swinney’s prediction that Andy Burnburn will be the United Kingdom’s last prime minister. None of the centre digests mention a cost estimate, a timetable, or the specific text of the signed pact.

Right

13 rated outlets

  • Three right-rated reports focused on Northern Ireland First Minister Michelle O’Neill's comments regarding US President Donald Trump's remarks on Irish unification. The Evening Standard's headline stated, 'Trump comments on Irish unity show debate is ‘very much alive’: Michelle O’Neill.' The Nation and Anadolu Ajansı also used similar headlines, highlighting O'Neill's assertion that Irish unification is 'very much on the table.' These reports mentioned the signing of a memorandum of understanding by the leaders of Sinn Féin, SNP, and Plaid Cymru, but the emphasis was on the reaction to Trump's statements and the ongoing debate about Irish unity.

Questions about this coverage

How did the left and right cover SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination?
Of the 36 outlets on this story carrying a published leaning rating, 50% are rated left, 14% are rated centre, 36% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 74. The sections above set out what each side emphasised, in its own terms.
Is SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination left or right?
Neither side dominates it. Of the 36 rated outlets on this story, 50% are rated left, 14% are rated centre, 36% are rated right, and no side holds the 70% this site would want before calling a field one-sided. A story is not left or right in any case; the outlets that carried it are what carry ratings.
Is the coverage of SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination biased?
SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination is one event reported by 74 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.
Which side is not reporting SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination?
When we first saw this story, outlets rated right had barely covered it. Coverage accretes for hours after an event, so that is where to look rather than a verdict — the split above is the current count, and it is the one to read.
Which outlets covered SNP, Plaid Cymru, Sinn Féin Sign Pact for Self-Determination?
74 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.
Who met in Cardiff and what did they agree on?
Leaders of the SNP, Plaid Cymru, and Sinn Féin met in Cardiff on 14 September 2026. They signed a memorandum of understanding calling for self-determination and urging the UK government to hold referendums on independence for Scotland, Wales, and a united Ireland.
What was the significance of Donald Trump's visit to Dublin?
US President Donald Trump publicly supported Irish unity during a visit to Dublin the weekend before the Cardiff meeting. His comments were seen by some as fuelling the debate on constitutional change in Ireland and were highlighted in several reports.
What did Michelle O’Neill say about the debate on Irish unification?
Northern Ireland First Minister Michelle O’Neill stated that US President Donald Trump's comments showed the debate on Irish unification is 'very much alive'. She indicated that the idea of unification is 'on the table' and reflects a growing conversation around constitutional change.

Read it at the source

75 outlets, grouped by the leaning a published rating gives them. Every headline links to the original; an underlined outlet name opens our profile of that publisher.

Left

19
Show 11 more

Centre

5

Right

13
Show 5 more

Not rated

38
Show 30 more

How did this read?

About the coverage, not about the story. We do not ask whether you agree with what happened — we have no honest use for that answer.

SNP, Plaid Cymru, Sinn Féin Pact | MediaBias News