Elizabeth Vargas is an American television journalist best known as the co-anchor of World News Tonight and 20/20 on for ABC. She was at the top of her field for decades, known for her strong reporting around the world. Despite having support, resources, and what most would call a privileged life, Elizabeth Vargas says she just could not stop drinking. After struggling with and hiding an alcohol use disorder, she opens up in an interview with Diane Sawyer, discussing what alcoholism did to her life.