Al Jazeera. 2026. “Green Party Wins UK By-Election in Blow to Labour, PM Starmer.” Al Jazeera. February 27, 2026. https://www.aljazeera.com/news/2026/2/27/green-party-wins-uk-by-election-in-blow-to-labour-pm-starmer.

Calver, Tom, and George Willoughby. 2026. “Keir Starmer Approval Rating: Today’s Polls and Popularity Tracked.” Thetimes.com. The Times. March 21, 2026. https://www.thetimes.com/uk/politics/article/keir-starmer-approval-rating-today-2026-iran-bl2rj82tx?gaa_at=eafs&gaa_n=AWEtsqeWWU_7e7H7P7xm15PCP2Jzjv6dzoI5Kd5F9WhD6x9ag1RnPMlEMgIs&gaa_sig=XQY-AxXE32c265IWRf7La59UYT5dIJL0iEOaNktFmACz06c7YyR_D8BNzUGxdVjtEaLH-5bDJulk7UxkNvHk6Q%253D%253D&gaa_ts=69ad9851.

Crerar, Pippa, Jessica Elgot, and Josh Halliday. 2026. “Starmer’s Allies Launch ‘Stop Andy Burnham’ Campaign to Block Parliamentary Return.” The Guardian. The Guardian. January 22, 2026. https://www.theguardian.com/politics/2026/jan/22/starmer-allies-stop-andy-burnham-campaign-block-parliamentary-return.

“Labour Sinks to Lowest Approval Rating of This Parliament.” 2025. Sky News. Sky. August 27, 2025. https://news.sky.com/story/labour-sinks-to-lowest-approval-rating-of-this-parliament-13419161.

McKiernan, Jennifer. 2026. “Green Party Wins Gorton and Denton By-Election, Pushing Labour into Third Place.” BBC, February 27, 2026. https://www.bbc.com/news/articles/cr453rvy6kvo.

Nevett, Joshua. 2026. “Andy Burnham ‘Disappointed’ after Bid to Become MP Blocked.” BBC, January 25, 2026. https://www.bbc.com/news/articles/czr4e7ep468o.

“Political Favourability Ratings, December 2025.” 2025. Yougov.com. 2025. https://yougov.com/en-gb/articles/53741-political-favourability-ratings-december-2025.

POLITICO Europe. 2026. “The UK Green Party Stormed to Victory in Thursday’s By-Election in the Labour Stronghold of Gorton and Denton, Bagging over 40 Percent of the Vote.” LinkedIn. February 27, 2026. https://www.linkedin.com/posts/politico-europe_the-uk-green-party-stormed-to-victory-in-activity-7433056250260594688-_uQg/.

Polls, in. 2026. “Andy Burnham vs Keir Starmer: How Their Polling Compares.” Substack.com. The Week in Polls. January 25, 2026. https://theweekinpolls.substack.com/p/andy-burnham-vs-keir-starmer-how.

“Starmer Says By-Election Loss ‘Very Disappointing’ - but Vows to Fight On.” 2026. Sky News. Sky. February 27, 2026. https://news.sky.com/story/green-party-wins-gorton-and-denton-by-election-13512774.

Topping, Alexandra. 2026. “Five Key Takeaways from the Gorton and Denton Byelection.” The Guardian. The Guardian. February 27, 2026. https://www.theguardian.com/politics/2026/feb/27/gorton-and-denton-byelection-green-reform-labour-tories.

Walker, Peter. 2026. “‘Huge Mistake’: Labour in Turmoil as Burnham Blocked from Byelection Race.” The Guardian. The Guardian. January 25, 2026. https://www.theguardian.com/politics/2026/jan/25/andy-burnham-blocked-from-byelection-race-by-labour-ruling-committee.

Zeffman, Henry. 2025. “Andy Burnham’s Provocative Challenge to Starmer Shows He Is Serious.” Bbc.com. BBC News. September 25, 2025. http://bbc.com/news/articles/cx275r1l3xpo.