Tony Blair warns Labour against letting SNP hold new referendum

Former prime minister says Jeremy Corbyn must avoid ‘horse-trading about the union’Tony Blair has warned the Labour leadership against using the union as a bargaining chip and accused Boris Johnson of putting the future of the UK at risk over Brexit.During a visit to Edinburgh, the former prime minister said it would be a “big mistake” for Jeremy Corbyn to enter into “horse-trading about the union”, when he was asked if the Labour leader should grant a section