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The 'war room' in Downing Street
Photograph: Martin Argles/GuardianDavid Cameron and Nick Clegg set out plans for 'seismic shift' in UK politics
Joint memorandum covers deficit reduction, environment, tax, banking reform, immigration, welfare and Europe
Video: Cameron and Clegg give their first joint press conference
First coalition cracks emerge as Cable takes back seat to Osborne on banks
Julian Glover: Nick Clegg and David Cameron may be less alike than they seem