Blumenthal was born in Texas and attended Hillcrest High School before enrolling in Duke University. She got an MBA from Southern Methodist University.
Blumenthal was a financial journalist for the Wall Street Journal for 25 years. She previously worked as a bureau chief for the newspaper in Dallas,[2] and as a reporter for the Dallas morning News.[3]
Blumenthal wrote Hillary Rodham Clinton: A Woman Living History, a biography of Hillary Rodham Clinton, and followed Clinton through her 2016 presidential campaign; Blumenthal had to hastily rewrite the ending of the book when it became clear that Clinton had not won the election.[4]
She taught journalism with her husband at Duke University[5] and Texas Christian University.
She began writing young-adult novels in 2016.