LABOUR'S lead over the Conservatives has narrowed to just four points, according to a new poll which casts real doubt on the prospect of a November General Election.

The survey for Channel 4 News is the first poll since David Cameron's unscripted address to the Tory conference in Blackpool on Wednesday, and shows the margin between the parties falling by seven points from Labour's peak of 11 per cent last week.

The figures emerged as Mr Cameron attempted to flush out Gordon Brown's intentions by writing to ask for Tory frontbenchers to be given access to senior civil servants to prepare the ground for a possible handover of power.