Late-night row will hang over Boris Johnson, whether or not he wins

Boris Johnson repeatedly refused to answer questions about the row during televised hustings on Saturday. Photograph: Oli Scarff/AFP/Getty ImagesBoris Johnson may yet win the Conservative leadership race, but questions surrounding the explosive late-night row with his partner will hang over the contest and into his premiership if he makes it to No 10.The former foreign secretary made it through the initial rounds of MP voting without tripping up or exposing himself to embarrassment, with his tea