John Major
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Election 2015: John Major joins the campaign

With 16 days of campaigning left, former Conservative Prime Minister John Major warned that a Labour-SNP government would be a "a recipe for mayhem".

Labour said the Conservatives should be "taking on the nationalists" not "talking them up".

In Northern Ireland the DUP launched its manifesto.

BBC News rounds up the highlights of the day's campaigning.

  • 21 Apr 2015
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