Does Alexandria Ocasio-Cortez signal an earthquake in Democratic politics?

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Less than a week after her stunning primary win, Ocasio-Cortez is told she’s too leftwing to win key midwestern votes. Hillary Clinton’s adopted home elevated her to within striking distance of the Democratic nomination. In a primary last Tuesday, Alexandria Ocasio-Cortez, a 28-year-old leftwing activist and Sanders organizer, defeated Joe Crowley, a 10-term House Democrat and potential contender for speaker, in an outer-borough New York district.