Princess Diana's brother, Charles Spencer, the 9th Earl Spencer, has released a memoir about her life titled, "Swan Song: Diana, My Sister." Spencer is a well-known author and historian, but some royal experts argue the book's claims do not stand up to scrutiny. Royal commentator Victoria Arbiter joins "Elizabeth Vargas Reports" to share her thoughts on the memoir and its portrayal of history. Anchor Elizabeth Vargas delivers the biggest stories, without bias or opinion. Watch "Elizabeth Vargas Reports" every weeknight at 7p/6C on NewsNation. #VargasReports NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij