Shortly after her mother, Cindy McCain, revealed the terrible news on Twitter, Meghan McCain mourned her late grandmother Roberta McCain with a touching message on the social media platform. “I love you Nana,” Meghan wrote. “You’re everything I ever aspired to be. Thank you for teaching us all about living life on your own terms with grit, conviction, intensity and love. There will never be another one like you, you will be missed every day. I wish my daughter had gotten to meet you.”