British Prime Minister David Cameron (L) walks hand-in-hand with his wife Samantha (R) as he leaves a polling station in London on May 3, 2012, after casting his vote in the local elections. Voters went to the polls in local elections in Britain on May 3, with London mayor Boris Johnson set to stay in office in an Olympic year but the governing coalition expected to take a battering. Cameron's two-year-old coalition with the smaller Liberal Democrat party has become increasingly unpopular due to a double-dip recession, austerity and a series of blunders.  AFP PHOTO / POOL / PETER MACDIARMID / AFP / POOL / PETER MACDIARMID        (Photo credit should read PETER MACDIARMID/AFP via Getty Images)