Save Our Hospital campaigners will today deliver a petition to Downing Street, signed by 60-thousand people, against plans to downgrade hospitals in Ealing and Hammersmith & Fulham.
NHS North West London is proposing to close four out the nine A&E departments.
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A volunteer on her campaign said to a voter that rival Sadiq Khan was a "liability" because he is Muslim.
A food historian has claimed that pasties made in Cornwall were mainly vegetarian - and the term 'Cornish pasty' was coined in London.
The demonstration is due to take place next Saturday in central London ahead of the "emergency" meeting in Brussels to discuss the crisis.