Mark Reckless wins Rochester and Strood for UKIP

Mark Reckless has won the Rochester and Strood by-election for UKIP after forcing the vote when he defected from the Conservative Party.

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500-1 odds that David Cameron will defect to UKIP

Bookies are offering odds on possible Tory defectors to Ukip Credit: Andrea Coy

Bookmakers are offering 500-1 odds that Prime Minister David Cameron will defect to Ukip.

It follows the party's victory in Rochester where Tory defector Mark Reckless won the by-election.

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