In the United States in 2018, which self-described democratic socialist surprised analysts by defeating a long-term incumbent to win a seat in Congress?

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Alexandria Ocasio-Cortez, often referred to by her initials AOC, surprised many by defeating incumbent Joe Crowley in the Democratic primary for New York's 14th congressional district in 2018. Her victory was notable because Crowley was a high-ranking member of the Democratic Party, and Ocasio-Cortez was a relatively unknown figure at the time, making her win a significant upset.

In the United States in 2018, Which Self-Described Democratic Socialist