CenterHigh
BBC NewsNews report · Sep 3, 12:41 PM
Zack Polanski says he'll run for former PM Starmer's seat in by-election
The Green Party leader intends to run in the Holborn and St Pancras seat following Sir Keir Starmer's resignation as MP.
← Today's headlines
6 sources checked · Left, Center, and Right included · 1h ago
Different Spin
Zack Polanski says he'll run for former PM Starmer's seat in by-election
The Independent and Daily Mail UK describe the same event in different terms.
2 Left2 Center2 Right
DIFFERENT SPIN
HOW EACH SIDE WORDED IT
Left-leaningCenter-leftZack Polanski announces bid to stand in Holborn and St Pancras by-election
The IndependentMostly Factual
Right-leaningZack Polanski confirms he DOES want to be Green candidate in by-election for Starmer's old seat... but could local party block him?
Daily Mail UKMixed
Center baseline · 
BBC NewsHighZack Polanski says he'll run for former PM Starmer's seat in by-election
As of September 3, 2026 at 4:52 PM, this is how Optics News reads the wording differences in this story.
What happened The Green Party leader intends to run in the Holborn and St Pancras seat following Sir Keir Starmer's resignation as MP.
The headline split The left frames it as "Zack Polanski announces bid to stand in Holborn and St Pancras by-election". The right frames it as "Zack Polanski confirms he DOES want to be Green candidate in by-election for Starmer's ol...".
Match confidence High confidence. 6 sources checked, Left/Center/Right all represented. Best read as a clear framing signal — not a fact-check.
Same-event confidenceHigh
6 sources across Left, Center, and Right all describe the same event.
Framing confidenceStrong
83/99 — headlines create a clearly different first impression.
WHAT EACH SIDE EMPHASIZED
Left / center-leftZack Polanski announces bid to stand in Holborn and St Pancras by-election
The Independent · Center-left · News report
CenterZack Polanski says he'll run for former PM Starmer's seat in by-election
BBC News · Center · News report
Right / center-rightUK Green Party leader Polanski announces intention to run for Starmer's MP seat in London
The Jerusalem Post · Center-right · News report
SEE THE HEADLINES
Open source
Center-rightMostly Factual
The Jerusalem PostNews report · Sep 3, 4:52 PM
UK Green Party leader Polanski announces intention to run for Starmer's MP seat in London
Polanski told the Camden New Journal on Thursday that he will stand in a by-election for the London constituency, which he said “represents so many of the things that make London so special...
Center-leftMostly Factual
The IndependentNews report · Sep 3, 1:38 PM
Zack Polanski announces bid to stand in Holborn and St Pancras by-election
The Green Party is expected to be Labour’s main challenger at the forthcoming by-election in Holborn and St Pancras
RightMixed
Daily Mail UKNews report · Sep 3, 1:20 PM
Zack Polanski confirms he DOES want to be Green candidate in by-election for Starmer's old seat... but could local party block him?
Zack Polanski said he was 'excited' by the prospect of representing Holborn & St Pancras in the Commons as he 'loves' the community.
Center-leftMixed
The Mirror UKNews report · Sep 3, 1:01 PM
'Box office by-election in Keir Starmer's old seat has high stakes for Labour and the Greens'
For Labour, the Holborn and St Pancras by-election presents a challenge - and an opportunity, as Green leader Zack Polanski eyes Keir Starmer's old constituency
CenterMostly Factual
The WeekNews report · Sep 3, 12:38 PM
Will Zack Polanski’s Parliament push help Greens recover in polls?
Green support plummets as new PM wins back Labour voters and leader smarts over gaffes
Details83/99 Wording Gap · High confidence · 6 sources
83/99 Wording GapHigh confidence6 sources · 3 bias bucketsStable · 6 sources · all three buckets · comparable news formatFormats: News report
SOURCE MAP CHANGES
Sep 3, 12:38 PM: The Week joined the source map.
Sep 3, 12:41 PM: BBC News joined the source map.
Sep 3, 1:01 PM: The Mirror UK joined the source map.
Sep 3, 1:20 PM: Daily Mail UK joined the source map.
Now: Wording Gap is 83/99 and story health is stable · 6 sources · all three buckets · comparable news format.