Ed Miliband has said tackling the cost of living crisis should be the number one priority for any politician in London.
The Labour leader said the "cost of living crisis" was massive for people across the capital, insisting they need a government to stand up for them and not the "privileged few".
Speaking to ITV London, Mr Miliband said Labour were already planning to tackle the cost of living by "abolishing the bedroom tax, tackling energy bills and strengthening the national minimum wage".
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The 20-year-old was found fatally wounded on Roth Walk, near Finsbury Park, north London at around 3am on Saturday, Scotland Yard said.
Police have arrested a man wanted in connection with a burglary at the home of pensioner Richard Osborn-Brooks.
The rally comes after it emerged that the Home Office destroyed thousands of landing cards documenting the arrival of windrush-era migrants