The Duke of Sussex has urged people in the US to reject hate speech as he risks a diplomatic row by joining a voting drive for the country s upcoming presidential election.br br The Duke, who as the grandson of the Queen has until now felt an obligation to remain politically neutral, appeared alongside his wife in a video on the US voting registration day. br br Get the latest headlines: br Telegraph.co.uk and YouTube.comTelegraphTV are websites of The Telegraph, the UK s best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.