stepping down as a senior member of the royal family earlier this year, Meghan Markle has been using her platform to raise awareness on topics close to her heart.In just the past few months, the Duchess of Sussex has been a powerful supporter of the Black Lives Matter movement, working behind the scenes with her husband, Prince Harry, to help enact real change in our country. Now, ET's breaking down everything Meghan has publicly said about being biracial, and why she's so passionate about