By Matthew Thompson, political correspondent837 miles. That is, officially at least, the distance the Lib Dem bus will travel on its final campaign push from John O'Groats in the North East of Scotland, to Land's End on the tip of Cornwall.Add in several daily campaign stops , and the total distance will be considerably more.Nor is it simply another Lib Dem gimmick. Both John O'Groats and Land's End are in constituencies the party are very much targeting at this election.
But once we leave Edinburgh tonight, we drive for several hours without stopping, until we reach the South West of England.And not by accident. Even the most generous polls only have the Lib Dems gaining 6 seats across the whole of the North of England and the Midlands.This is a highly targeted campaign. The strategy is to focus on areas where the party has historical strength, and where it has recently come second, primarily to the Conservatives.