Less than a year after the election, average polls suggest that Labour continue to poll at about the same level or worse than the 2015 result. Anthony McDonnell writes that this is worrying for the Left, as previous trends indicate their poll numbers usually rise significantly relative to the Conservatives’ within months of the Tories taking office. He argues that if Labour doesn’t widen its lead in the polls now, mobilising new voters alone will not be enough to win the 2020 general election