the former england footballer launched the scathing attack on the head of ukip after leaders from each of the seven largest parties went head-to-head for the first time in the historic tv election debate .
opinion polls produced mixed results on who had ` won ' the contest , with comres survey showing that 40 per cent of voters think david cameron is ` most capable of leading the country ' , while others backed snp leader nicola sturgeon and others putting ed miliband ahead that