London Mayor Sadiq Khan Getty One hundred business leaders today backed Mayor of London Sadiq Khan for re-election. They said he had been a strong advocate for their sector during the coronavirus pandemic. "Sadiq has been the most pro-business mayor ever, standing up for our interests on issues like Brexit and business rates," said Helen McIntosh, president of the South East London Chamber of Commerce. See more stories on Insider's business page. One hundred business leaders today backed Mayor of London Sadiq Khan for re-election as the city's "most pro-business mayor ever", saying he had been a strong advocate for