Sen. Elizabeth Warren, D-Mass., speaks during a rally in front of the Capitol on March 22. She writes about the middle class and activism in her new book, This Fight Is Our Fight.
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Mollie Burkhart (second from right) lost all three of her sisters under suspicious circumstances. Rita Smith (left) died in an explosion, Anna Brown (second from left) was shot in the head and Minnie Smith (right) died of what doctors referred to as a "peculiar wasting illness."
The Osage National Museum/Courtesy of Doubleday