Bringing Up Bates alum Lawson Bates is sharing his public support for sister Katie Bates after Travis Clark admitted to cheating on her just hours after she revealed a recent pregnancy loss. "@kgbates2000, I still can't believe you dropped everything at a moment's notice to come be with us and help document this huge life moment. It meant the world," Lawson, 33, wrote via his Instagram on Sunday, January 18, alongside a photo of the brother-sister duo standing beside his wife, Tiffany Bates, after she gave birth.