Kamala Harris paid a heartfelt tribute to her mother when she remembered her for World Cancer Day on 4 February.The Vice President, 56, confessed that, despite her beloved mother’s career trying to discover a cure for the disease, it was cancer which took her life. MORE: Kamala Harris pays tribute to her sister with incredible photo In a poignant Instagram post, Kamala shared a sweet childhood photo with her mum, along with an emotional message. WATCH: Kamala Harris and Michelle Obama share a