Kamala Harris to give biggest speech of career at DNC finale

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The Vice President will take to the stage, at the Democratic National Convention in Chicago, to accept the party’s presidential nomination. Her aides say she'll deliver a robust denunciation of Donald Trump, and lay out her plans to tackle the cost of living and protect personal freedoms, including access to abortion. Also in the programme: The first drug to slow the progression of Alzheimer's disease has been approved for private use, but it won't be available on the NHS in England. And, the world's second-largest diamond was found in Botswana.