Billie Jean King talks about new autobiography, ‘All In’ l GMA

King reveals what she went through behind the scenes as a trailblazing leader in gender equality and more in her new book. SUBSCRIBE to GMA's YouTube page: https://bit.ly/2Zq0dU5 VISIT GMA's homepage: https://www.goodmorningamerica.com SIGN UP to get the daily GMA Wake-Up Newsletter: https://gma.abc/2Vzcd5j FOLLOW GMA: TikTok:   / gma   Facebook:   / goodmorningamerica   Twitter:   / gma   Instagram:   / goodmorningamerica   #BillieJeanKing #Tennis #LGBTQ #GMA