The CWU, one of Corbyn's earliest backers, will formally affliate to the organisation.
Labour could seek a "progressive alliance", while the Tories could prevail with Northern Irish support.
Could Labour, the Lib Dems, and the SNP kick the Tories out of power?
Could the opposition parties band together and form a government?
The game plan was for May to win a bigger Tory majority, which would give her the mandate to negotiate Brexit.
The poll, released at 10pm, suggests the Conservatives are the largest party but cannot reach an overall majority. Is that right?
The results as they happen - live with the NS team.
The former Labour leader's sassiness, seemingly lost during the 2015 general election, returned in time for his 2017 campaign.
The polling looks decidedly ordinary, but there are several fascinating contests in store. Could Nigel Dodds be dethroned by Sinn Fein?
Andrew George, Lib Dem MP for St Ives from 1997-2015, condemns his party’s anti-Brexit manifesto – and blames a “remote dinner party set” for distancing the Lib Dems from voters.
Theresa May is a fragile prime minister, a new age of intervention has begun and the two party system is back.