The home for Labour’s radical realists - united by values, driven by change. Join us to unlock the transformative potential of the Labour Party.

Joined August 2025
By the strength of our common endeavour we achieve more than we achieve alone. 🌹🤝 Agree? Vote Kerry Postlewhite, Cat Arnold, Jovan Owusu-Nepaul and Cllr Elizabeth Dennis for Labour's NEC. Watch our campaign video to find out more 📺👇
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A comment from Mainstream's Interim Council and SERA on the approval of the Jackdaw Gas Field 👇
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This week Mainstream has released its newest publication - a collaboration with the Labour Progressive Policy Network. It features essays from 12 Labour staffers and figures covering policy areas from progressive approaches to AI to Lords reform. Read it today!
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Mainstream retweeted
Wow! Our @UKLabour family is out in force for the final campaign weekend in Holborn & St Pancras. Thank you @Sagal_AW for being an incredible candidate and for running such a hopeful, positive and energetic campaign. Final push! 🙌🏾💪🏾
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Our Chair and NEC rep, Kerry Postlewhite, with some of the Mainstream members who joined our campaign session in Holborn & St Pancras today. See you back there tomorrow! 🌹
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Our reaction to the Prime Minister’s speech in @LabourList 🌹 Radical realism in action. Mainstream Labour values in practice.
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Thank you to the hundreds of you who joined us Monday to celebrate Mainstream's first year. In just twelve months, we've helped shape the Labour Party taking form today. Now we’ll do what Ed suggested: support and pressure. That’s how we’ll transform the country.
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“People were so excited by the idea of having some agency in their own town. It was palpable.”
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“Andy’s wrong about one thing: ‘Privatisation has failed’. Absolutely not. It hasn’t failed; it has functioned exactly as it was always supposed to. It was always intended to transfer wealth upwards.” - Barry Gardiner
Now we have reflections from @BarryGardiner, MP for Brent West #labourconference2026
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“The privatisation of water has been an economic, environmental, and public health disaster… We can’t afford privatisation for any longer. A lack of water supply and treatment is holding our country back.”
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Now we have reflections from @BarryGardiner, MP for Brent West #labourconference2026
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“We need to rebuild public spaces and common knowledge if we want collective political agency.” - Sofia Ropek-Hewson #labourconference2026
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Up next is Sofia Ropek-Hewson, Senior Research Fellow at IPPR #LabourConference2026 @sofiaropek
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“These sorts of places didn’t just make us less lonely, they made it easier to come together … and have collective political agency’’ - Sofia Ropek-Hewson on social spaces
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“Private capital systematically undermines [our essential sectors] for private gain.” Mat Lawrence, @DantonsHead, Director @Cmmonwealth #labourconference26
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