LONDON, ENGLAND - FEBRUARY 02:  Conservative Party leader David Cameron (R) walks with Shadow Chancellor George Osborne after Osborne delivered a speech on the future of the British economy, at the British Museum on February 2, 2010 in London, England. Mr Osborne spoke to supporters and journalists on the future of the British economy. Getty Images logo Getty Images 24 months ago

LONDON, ENGLAND - FEBRUARY 02: Conservative Party leader David Cameron (R) walks with Shadow Chancellor George Osborne after Osborne delivered a speech on the future of the British economy, at the British Museum on February 2, 2010 in London, England. Mr Osborne spoke to supporters and journalists on the future of the British economy.