Two of Labour's largest union backers are pushing back on Prime Minister Andy Burnham's openness to rejoining the EU. Burnham has said the UK's current arrangement is not good enough.
GMB chief Gary Smith said he would be cautious about fully rejoining.
A Unite source said the union wants closeness without rejoining.
Labour MPs Jon Trickett, Brian Leishman and Jonathan Hinder have raised objections.
£750 million a week in fees, estimates new campaign group Stay Out.
Why it matters: Burnham has suggested the UK could rejoin the customs union, the single market, or the EU itself. Union and backbench resistance could limit those options.
Friday's deal covers food and drink rules, youth mobility, and emissions trading.
Labour's next manifesto may include wording on rejoining, The Independent reports.
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How 4 sources split on this story
Source landscape
Factuality
High
Mixed
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Strong LeftLeftLean LeftCenterLean RightRightStrong Right
Political Bias
Coverage by lean% of 4 sources
4 sources · 5 articles · 50% Right coverage
Where they split: The outlets disagree on the story itself: the Daily Mail centers growing resistance to rejoining within Labour, while The Independent describes momentum toward rejoining as building.
Right coverage, 2 sources: The right sees Burnham's rejoin ambitions meeting a revolt from Labour's own union funders and MPs, with high costs attached.