
80/20
That's because Labour's Boundaries Commission moved the voting boundaries to ensure that they could win certain key seats with less votes. For instance, entire towns were moved from The Wirral to Merseyside, or from Warwickshire to West Midlands. And by moving a boundary a little bit to the North, South, East or West, they could make sure that seat had a majority of labour voters and far fewer Tory or LibDem voters to challenge them.