Londoners will vote to choose the new Mayor of London on Thursday and it will bring an end to a contest that has been riddled with accusations of racism.
The Labour leader accused the Conservatives of running a smear campaign against Mr Khan with their continual reference to the Labour candidate sharing a platform with Suliman Gani, a London imam who Cameron insists is a supporter of Isis.
Mr Gani has denied the allegations he supports Isis and said he was surprised by the Prime Minister's comments.
In a statement, he writes: “For the avoidance of any doubt, I state again that Islamic State is in no way compatible with my beliefs. I condemn IS wholeheartedly, and have done so repeatedly in public and in private since its inception.”
It has been revealed that Mr Gani is in fact a Conservative voter and previously been invited to an event encouraging more Muslims to be Tory councillors.
Mr Corbyn told the Prime Minister: “The gentleman concerned is actually a Conservative, so maybe he would care to think about that.
“He might also consider that Shazia Awan, a former Conservative Parliamentary candidate, said this of the Tory mayoral campaign: ‘I’ll be voting Labour. A life-long Tory voter and ex-candidate, I’m ashamed of the repulsive campaign of hate.’”
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