Angela Rayner's membership to Unite has been suspended as Britain's largest trade union has said it needs to "re-examine its relationship with the Labour Party".
Delegates "overwhelmingly" voted to boot the Deputy Prime Minister from the union after an emergency motion at Unite's policy conference in Brighton, where it condemned Birmingham's Labour council and the Labour Government "for attacking bin workers" amid an ongoing city-wide bin strike.
"Unite has overwhelmingly voted to re-examine its relationship with Labour and Deputy Prime Minister Angela Rayner has had her Unite membership suspended over her role in the Birmingham bin strike," a union statement said.
The union confirmed that Birmingham Council leader John Cotton, along with his "fellow Unite" councillors, had also had their memberships suspended - adding all had brought the "union into disrepute".
"John Cotton and fellow Unite Birmingham councillors have had their Unite membership suspended for their roles in effectively firing and rehiring the workers, who are striking over pay cuts of up £8,000," the statement continued.
Unite General Secretary Sharon Graham then accused Rayner of "peddling lies".
He said: "Unite is crystal clear it will call out bad employers regardless of the colour of their rosette.
"Angela Rayner has had every opportunity to intervene and resolve this dispute but has instead backed a rogue council that has peddled lies and smeared its workers fighting huge pay cuts.
Angela Rayner has been suspended by UniteHOUSE OF COMMONS"The disgraceful actions of the Government and a so-called Labour council, is essentially fire and rehire and makes a joke of the Employment Relations Act promises.
"People up and down the country are asking whose side is the Labour government on and coming up with the answer not workers."
It comes after GB News exclusively reported that ex-Unite boss Len McCluskey hinted trade unions could abandon Labour to switch to Jeremy Corbyn's new party.
McCluskey, 74, comments showed fresh pressure on Labour as internal divisions widen with Corbyn, just days ago, declaring "change is coming".
Unite General Secretary Sharon Graham
Jacob King/PA WireHe said if Corbyn's new party "proves credible," it could lead to individuals and trade unions switching their support.
The conference also condemned Birmingham Council "for its threat to effectively fire and rehire, on pain of redundancy, the Unite Birmingham bin workers".
The Labour Government was also under fire from the union, with the statement further declaring it had supported the "council and the commissioners [which were] originally appointed by the Tories and maintained by Labour".
The conference found that the union "should discuss our relationship with Labour".
Birmingham Council leader John Cotton
PAThe statement added that Birmingham Council appointed commissioners, who, along with John Cotton, had never joined negotiations and continually blocked deals to end the industrial action.
It asserted that they answered directly to Rayner.
Unite confirmed an investigation would be made into the suspended members' behaviour with a "view to expelling them from the union".
"In April, the Secretary of State for Local Authorities toured Birmingham waste depots using strike-breaking labour and insisted the strikers should accept a deal that would have seen their wages slashed," the union said.
The motion was voted on by 800 Unite delegates, representing sectors across the economy from automotive to the NHS.
Unite is the Labour Party's largest affiliated union.