Nick Clegg and David Cameron
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Cameron says AV will not break coalition

The referendum on changing the UK voting system will not break the coalition, David Cameron has said.

The PM, who backs first-past-the-post, said he and his deputy Nick Clegg, who wants to replace it with AV, were both committed to a five-year government.

Both party leaders were putting the opposing cases in TV interviews on Sunday - ahead of the 5 May referendum. The BBC's political correspondent Gary O'Donoghue reports.

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