Kate Garraway has revealed there's "huge challenges ahead" for her husband Derek Draper as his health battle continues.The 54-year-old broadcaster was back on Good Morning Britain presenting duty on Friday alongside temporary co-host Alastair Campbell.At the top of the show, Kate pointed out that strategist Alastair, 64, is an old friend of her husband Derek. "You know my old man don't you," the mother of two asked her co-star.Alastair, a former spokesperson for ex Prime Minister Tony Blair, replied: "Yes.
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