London's newly elected mayor lays out the argument for staying in the EU.
Conservative opponent Zac Goldsmith's campaign was slammed as racially divisive.
Kahn says he will launch a review if elected.
The group said it plans to target 17 London statues and fix breathing masks over their faces.
Khan said the Labour party's failure to tackle anti-Jewish sentiment was "unacceptable."
Party leader Nigel Farage blames the London crisis on a rising population.