By Matt Chorley, Mailonline Political Editor PUBLISHED: 11:54 EST, 29 January 2013 | UPDATED: 11:34 EST, 30 January 2013 Cabinet minister Ken Clarke will today urge David Cameron to focus on the 'positives' of Brussels staying in the European Union as he helps launch a campaign to keep Britain in the European Union. The former Chancellor will be joined by Lib Dem treasury minister Danny Alexander and Labour's Lord Mandelson to front a ‘patriotic fightback’ against euroscepticism. Mr Clarke will defy anti-Europe sentiment in his party to insist the PM must 'concentrate on what we are in favour of and not just what we are against' while Mr Alexander will dismiss calls to withdraw from much of the EU as 'nonsensical'.
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Launch of Centre for British Influence marks a 'patriotic fightback'
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Tory Cabinet minister urges Prime Minister to talk up ties with Brussels
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Lord Mandelson to warn anti-EU claims 'cannot go unchallenged anymore'
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Organisers promise a 'patriotic fightback' arguing Britain wields more power as a leading nation in Brussels
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David Cameron used long-awaited speech to promise in-out vote by 2017
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Ed Miliband talked out of matching pledge 'by his brother David' - reports
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Tony Blair warns leaving the EU would be 'very bad' for Britain
It will publish an annual EU power league, to show how the @placeholder benefits from continued membership.