Burnham has just revealed his very expensive plans for government

“A vote for me will be a vote to change Labour,” Mr Burnham told the audience at the Great North summit in Leeds. For Labour, read Sir Keir Starmer. Mr Burnham could be prime minister before schools break for the summer holidays, so what he says on the campaign trail in this mother of all by-elections really matters. The theme first. Mr Burnham is arguing that Britain has been on the wrong path since the 1980s, a four-decade slide into decline that he is vowing to overturn. It is a rebuke not only of Thatcherism, which he argues gutted the...