Thousands of protesters today called for the Government to axe the changes to housing benefits, dubbed a "bedroom tax" by campaigners.
Organisers said some 12,000 to 13,000 activists had turned out to protest across the UK against the plans, which will see benefit cuts for people with a spare room.
The protest's national organiser, Dr Eoin Clarke, said:
It punishes the disabled, single parents, carers, the terminally ill, soldiers serving on the frontline and foster parents with more than one foster child.
It is not about left and right, it is about right and wrong.
David Cameron's Government have shown that they just haven't got a clue.
The biggest marches took place in Liverpool and Manchester, with more expected in London, Edinburgh, Glasgow and Cardiff on March 30.
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Sir Vince Cable, Caroline Lucas, Tony Robinson and Gina Miller led a demonstration on the second anniversary of the EU referendum.
Turning hot over the next few days. High pollen and UV levels.
The march took place on the second anniversary of the EU referendum.