Video: PMQs: David Cameron and Ed Miliband defend a month of political disasters David Cameron was forced to defend the "pasty tax" after MPs questioned how fair it was to add 20 per cent VAT on baked goods while caviar was exempt. The Government has endured weeks of bad headlines since the Budget, but Mr Cameron turned his fire on Ed Miliband, saying the Labour leader had suffered a by-election blow in the Bradford West contest won by George Galloway and attacked the tax affairs of Labour's London mayoral candidate Ken Livingstone. Mr Cameron told him: "You talk about my last month, I accept, a tough month. Let's have a look at your last month: you lost the Bradford by-election ... you showed complete weakness when it came to the Unite union and the fuel strike and you've got a mayor of London who won't pay his taxes.