Under our winner-takes-all system, in tight seats, voters could well hold their noses and cast their ballot for a candidate with the best chance of winning, just to deliver a knock-out blow for the Tories.
Flexibility can be helpful : why PM can choose UK general election date aol.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aol.co.uk Daily Mail and Mail on Sunday newspapers.