Former US President Barack Obama has revealed Queen Elizabeth reminded him of his grandmother. The politician has filmed a special video reflecting on the time he and his wife Michelle spent with Her Majesty during their time in the White House and in the film he praised her for treating her guests with such "generosity" as well as recalling anecdotes about the kindness she showed to the couple's two daughters, Malia and Sasha. He posted the film on his Twitter account, writing: "Michelle and I were lucky enough to know Her Majesty The Queen.