London Mayor Sadiq Khan heads to first day in officeTo play this video you need to enable JavaScript in your browser.This video can not be playedLondon Mayor Sadiq Khan heads to first day in officeCloseSadiq Khan heads to his first day in office after winning the London mayoral election.SubsectionUK PoliticsPublished7 May 2016Shareclose panelShare pageCopy linkAbout sharingRead description