Jeremy Corbyn's customs union plan 'impossible to deliver'

Jeremy Corbyn's pledge to keep Britain in a permanent customs union with the EU has been branded Blairist spin "at its best" by a senior MP from his own party.In a speech in Coventry on Monday, the Labour leader sought to reboot Labour's Brexit policy by backing a customs union to ensure no trade tariffs were imposed with Europe and avoid a hard border in Northern Ireland.Mr Field is one of the few Brexiteer Labour MPs, whose lack of support for an amendment to the Trade Bill could help scupper