Alternate headline: Elizabeth Warren to make millions off capitalist system she seeks to destroy.

WASHINGTON — Senator Elizabeth Warren plans to start shopping a book proposal to publishers, seeking to enhance her national political stature while promoting what she considers the cause of her public and legal career: protecting the middle class from abusive financial practices.

The book’s working title is “Rigged,” Warren said in an interview, and she expects it to offer a first-hand account of her battles in Washington to rein in the sorts of predatory lending and Wall Street excess that victimized everyday Americans.

While she has not placed a proposal in any publisher’s hands, it is conceivable the freshman senator could command a seven-figure contract, based on the bar set by books authored by Massachusetts politicians Governor Deval Patrick and former senator Scott Brown.

“I’ve been blessed with an unusual career,” Warren said Tuesday. “I’ve had the opportunity to fight for causes I believe in. And this book is national, but it’s also deeply personal. It’s a very personal book.” […]

While the book will be about fighting for the middle class, it could provide rich rewards for Warren, who said she had not thought about what she would do with the money.