The relationship between celebrity and politics stretches back over 100 years. In the run-up to the 1920 election, Hollywood stars Mary Pickford and Al Jonson backed Republican presidential candidate Warren G Harding, who went on to win a landslide victory. More recently, hundreds of celebrities including Paul McCartney and Oprah Winfrey endorsed Barack Obama in 2008, while Cardi B and Arianahellip;

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