CenterMostly Factual
The ScotsmanNews report · Sep 1, 11:24 AM
Sir Keir Starmer to resign as MP after standing down as Prime Minister
Just weeks after standing down as Prime Minister, Sir Keir Starmer is set to leave the House of Commons.
← Today's headlines
20 sources checked · Left, Center, and Right included · 1h ago
Different Spin
Sir Keir Starmer to resign as MP after standing down as Prime Minister
Headlines range from factual reporting of Starmer's resignation to emphasizing the 'shock' and political fallout, or focusing on the reasons and electoral consequences.
9 Left8 Center3 Right
DIFFERENT SPIN
HOW EACH SIDE WORDED IT
Left-leaningKeir Starmer to quit parliament, triggering byelection in north London seat – UK politics live
The Guardian - PoliticsMixed
quit parliamenttriggering byelectionUK politics live
Right-leaningWhy is Keir Starmer stepping down as an MP? What the ex-PM said as he announces resignation from his seat
The Sun UKLow
Why is Keir Starmer stepping downex-PM saidresignation from his seat
Center baseline · 
The ScotsmanMostly FactualSir Keir Starmer to resign as MP after standing down as Prime Minister
As of September 1, 2026 at 12:36 PM, this is how Optics News reads the wording differences in this story.
What happened Just weeks after standing down as Prime Minister, Sir Keir Starmer is set to leave the House of Commons.
The headline split The left frames it as "Keir Starmer to quit parliament, triggering byelection in north London seat – UK politics...". The right frames it as "Why is Keir Starmer stepping down as an MP? What the ex-PM said as he announces resignati...".
Match confidence High confidence. 20 sources checked, Left/Center/Right all represented. Best read as a clear framing signal — not a fact-check.
Same-event confidenceHigh
20 sources across Left, Center, and Right all describe the same event.
Framing confidenceModerate
75/99 — meaningful wording shift across the spectrum.
WHAT EACH SIDE EMPHASIZED
Left / center-leftAndy Burnham latest: PM faces fresh by-election battle after Starmer announces shock resignation as MP
The Independent · Center-left · News report
CenterSir Keir Starmer to resign as MP after standing down as Prime Minister
The Scotsman · Center · News report
Right / center-rightWhy is Keir Starmer stepping down as an MP? What the ex-PM said as he announces resignation from his seat
The Sun UK · Right · News report
SEE THE HEADLINES
Open source
Center-leftMostly Factual
The IndependentNews report · Sep 1, 12:36 PM
Andy Burnham latest: PM faces fresh by-election battle after Starmer announces shock resignation as MP
shock resignationfresh by-election battle
Burnham set to give first Commons address as PM
RightLow
The Sun UKNews report · Sep 1, 12:32 PM
Why is Keir Starmer stepping down as an MP? What the ex-PM said as he announces resignation from his seat
Why is Keir Starmer stepping downex-PM saidresignation from his seat
SIR Keir Starmer has announced he is quitting Parliament, triggering a London by-election battle. The former Prime Minister is standing down as MP for Holborn and St Pancras after 11 years...
LeftMixed
The Guardian - PoliticsNews report · Sep 1, 12:25 PM
Keir Starmer to quit parliament, triggering byelection in north London seat – UK politics live
quit parliamenttriggering byelectionUK politics live
Former PM announces he will no longer represent Holborn and St Pancras on the day his successor, Andy Burnham, is to give first Commons address as prime minister My colleague Richard Partin...
Center-leftMostly Factual
Wales OnlineNews report · Sep 1, 12:06 PM
Keir Starmer to step down as an MP
Sir Keir will step down as the MP for Holborn and St Pancras, a move that will trigger a by-election in the north London seat
CenterHigh
ABC News Australia Top StoriesNews report · Sep 1, 12:02 PM
Former British PM Keir Starmer to leave politics
The former Labour leader says it is time to "pass the baton" to a successor as he triggers a by-election in his North London seat.
Show all 20 sources
Center-rightMixed
Daily MailNews report · Sep 1, 11:56 AM
One last U-turn! Keir Starmer QUITS as an MP despite promising he would stay on after being ousted by Burnham... leaving new PM with by-election headache
Keir Starmer previously insisted he would stay on as the member for Holborn and St Pancras.
CenterHigh
Politico EuropeNews report · Sep 1, 11:55 AM
Keir Starmer will force by-election after quitting as member of parliament
The former British PM wants to focus on international affairs, including defense and security.
Center-leftMostly Factual
The Journal (Ireland)News report · Sep 1, 11:54 AM
Keir Starmer quits as MP, triggering byelection test for Andy Burnham's Labour government
The former British prime minister said it was “the right time” for him to leave office.
Center-leftHigh
Irish TimesNews report · Sep 1, 11:51 AM
Keir Starmer to stand down as MP
Greens will target former prime minister’s seat in central London byelection
CenterHigh
BBC NewsNews report · Sep 1, 11:50 AM
Keir Starmer announces he is standing down as MP
The former prime minister said he would now turn his focus to international affairs.
Center-leftMostly Factual
iNews (UK)News report · Sep 1, 11:39 AM
Starmer to step down as MP triggering by-election flashpoint
The former prime minister will focus on defence and international affairs
CenterHigh
BloombergNews report · Sep 1, 11:37 AM
Former UK Prime Minister Starmer Steps Down From Parliament
Former UK Prime Minister Keir Starmer is leaving British politics after deciding to step down as a member of Parliament.
CenterHigh
The Times of IndiaNews report · Sep 1, 11:28 AM
Former UK PM Keir Starmer to step down as MP: Report
Keir Starmer has announced his resignation as the Member of Parliament for Holborn and St Pancras, intending to shift his focus towards international issues and enhancing efforts against vi...
CenterHigh
Financial TimesNews report · Sep 1, 11:27 AM
Keir Starmer to stand down as MP
Decision by former prime minister comes just weeks after he was replaced by Andy Burnham
CenterHigh
The Belfast TelegraphNews report · Sep 1, 11:27 AM
Sir Keir Starmer to step down as MP to focus on overseas affairs
Center-leftMostly Factual
The Herald (Scotland)News report · Sep 1, 11:23 AM
Sir Keir Starmer to stand down as MP in major Westminster shake-up
Former prime minister Sir Keir Starmer is to stand down as an MP, triggering a by-election and another major change at the heart of Westminster politics.
Center-leftMostly Factual
Metro UKNews report · Sep 1, 11:23 AM
Keir Starmer to step down as MP and force London by-election
Sir Keir Starmer said he plans to focus on international affairs (Picture: Wiktor Szymanowicz/Future Publishing via Getty Images) Former Prime Minister Sir Keir Starmer has announced he wil...
Center-leftMixed
The Mirror UKNews report · Sep 1, 11:22 AM
Keir Starmer to step down as Labour MP after resigning as PM in July
Keir Starmer is to step down as a Labour MP after resigning as Prime Minister earlier this summer to focus on international affairs and tackling violence against women and girls
RightMixed
GB NewsNews report · Sep 1, 11:21 AM
Keir Starmer quits as MP as ex-PM triggers by-election headache for Andy Burnham
Sir Keir Starmer has resigned as the MP for Holborn & St Pancras and triggered a by-election headache for Andy Burnham. The ex-Prime Minister, who vowed to remain as an MP until the next ge...
Details75/99 Wording Gap · High confidence · 20 sources
75/99 Wording GapHigh confidence20 sources · 3 bias bucketsStable · 20 sources · all three buckets · comparable news formatFormats: News report
SOURCE MAP CHANGES
Sep 1, 11:21 AM: GB News joined the source map.
Sep 1, 11:22 AM: The Mirror UK joined the source map.
Sep 1, 11:23 AM: Metro UK joined the source map.
Sep 1, 11:23 AM: The Herald (Scotland) joined the source map.
Now: Wording Gap is 75/99 and story health is stable · 20 sources · all three buckets · comparable news format.