Brexit: Two former PMs to join Final Say rally calling for tactical voting to block majority for Boris Johnson

Two former prime ministers – Sir John Major and Tony Blair – are to address a Final Say rally where supporters of a second EU referendum will call for tactical voting to block a Conservative majority government under Boris Johnson.The rally in London, six days ahead of the 12 December general election, is the most explosive intervention in the campaign so far by the two ex-PMs, both of whom are staunch opponents of Brexit.