Labour leader Keir Starmer is under growing pressure after his deputy Angela Rayner said she would like to see Diane Abbott back in the party.
Ms Rayner also condemned as “absolutely chilling” alleged comments by top Tory donor Frank Hester that Ms Abbott made him “want to hate all Black women” and that she should be “shot”.
She said: “Personally I would like to see Diane back.” She added: “But the Labour party has to follow its procedures… so it does not matter what I think.”
Her comments came as Labour veteran Harriet Harman called for the investigation into Ms Abbott’s suspension to be sped up, admitting that the processes can sometimes be slow.
The comments will pile pressure on Sir Keir, who has so far resisted calls to restore the whip to Ms Abbott, who has been at the centre of a Conservative race row in recent days,
Earlier, Sir Keir said Ms Abbott, who has been subjected to shocking levels of abuse, needed “an arm around her” but desribed her suspension as a “completely different” issue and one that was “subject to an ongoing investigation”.
The longtime MP was suspended from Labour last year after she suggested Jewish, Irish and Traveller people are not subject to the same racism as some other minorities.
The MP for Hackney North and Stoke Newington, who served in Jeremy Corbyn’s shadow cabinet alongside Ms Rayner, apologised “unreservedly”.
But Sir Keir would not be drawn on whether or not Ms Abbott, who currently sits as an independent, could expect to become a Labour MP again, saying the 11-month investigation into her alleged antisemitic remarks was “not resolved”.
The Labour leader said the longest-serving black MP was a “trailblazer” and described the language allegedly used by Mr Hester “abhorrent”.
But he told BBC Radio 2’s Jeremy Vine that allowing the MP back into the party was an “entirely different issue”.
He added: “That was about allegations of antisemitism in relation to a letter… which is subject to an ongoing investigation, which is separate from me. That’s not something which I conduct.”
Ms Rayner said she sometimes felt “frustration” over how long processes can take, but added: “In (some) instances there are sensitive reasons for that.”
The comments come a day after Ms Abbott hit out at the Conservatives and Labour, accusing both parties of “shocking” racism in the Tory donor scandal.
Rishi Sunak has refused to hand back a £10m donation from Mr Hester, a wealthy businessman.
The prime minister has defended keeping the cash and argued that the healthcare tech entrepreneur’s apology should be accepted.
Speaking at a lunch with Westminster, Ms Rayner also said major Labour donor Dale Vince should “reflect” on his “appalling” remarks about Hamas.
He told Times Radio last year that “one man’s terrorist is another man’s freedom fighter” when asked about the Palestinian militant group that carried out the October 7 attacks, in which 1,200 people were killed.
At an event in Westminster, Ms Rayner was asked if she thought the comments had been appropriate She said: “In that context, I think it is appalling and I don’t think he should have said it.
“And I think he should reflect on that. Language is important.”