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Reckless sworn in as UKIP's second elected MP; Ben Wright reports from Rochester, and we hear from previous Conservative defector Douglas Carswell.

Cameron "determined" to win back seat; we speak to Andrew Bridgen and Transport Secretary Patrick McLoughlin - and hear from our political editor Nick Robinson.

As Emily Thornberry apologises for her Rochester tweet, Harriet Harman tells us Labour are "One Nation" party. Lib Dem president Tim Farron says supporters in Rochester voted tactically.

And Matthew Goodwin and John Curtice discuss UKIP's prospects at next year's General Election.

Presented by Mark Mardell.