Prospect of Labour leadership race brings out different sides of rivals

The Labour party has seemed to inhabit three parallel worlds over the past fortnight. There is a prime minister celebrating good news on the economy and lower migration figures and breezily insisting he will fight the next election, but with his party intent on deposing him. There is a local byelection where Andy Burnham , the party’s leftwing hope for prime minister, will have to demonstrate he can win over Reform UK voters on migration, and the bond markets on fiscal rules. …