Len McCluskey has been re-elected as Unite's general secretary, seeing off Gerard Coyne.
The contest was seen as a proxy battle for the Labour leadership. Corbyn supporting McClusky contrasted with anti-Corbyn Coyne.
Coyne was suspended from his job at the union for 'bringing the union into disrepute' on Thursday, while ballots were being counted. The contest has seen barbs thrown by both sides, and it isn't clear why Coyne has been suspended. He remains a member of the union.
Mr McCluskey won 59,067 votes, Mr Coyne 53,544 and Ian Allinson 17,143, in a turnout of just over 12%, Unite said.
This will be seen within the Labour party as a sign that the union will continue to actively support the left wing of the party against the moderates no matter the results of the General Election.BLOG COMMENTS POWERED BY DISQUS