An election victory is only the start of the battle for Cameron
From our UK edition
The News of the World has done its poll of marginal seats today (story here, Anthony Wells here) – a hugely expensive operation, but worthwhile because British elections are decided in marginal seats. National polling, while interesting, can be a misleading indicator of outcome. The result is that the Tories have a safe lead of 13 points (take a bow, Lord Ashcroft), but would still end up with just a 38-seat majority due to Westminster’s unfair voting system. As I say in my column, this is nowhere near a ‘safe’ majority, because it means the government can be defeated by 20 rebels.