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Guest Essay

By Peter Beinart

Mr. Beinart is a contributing Opinion writer at The Times.

To grasp the significance of Zohran Mamdani’s shocking victory in last month’s Democratic primary for mayor of New York, it’s worth recalling another upset, which took place 11 years ago and some 300 miles to the south, in a Republican congressional primary near Richmond, Va. In 2014 Dave Brat, a little-known economics professor at Randolph-Macon College, challenged Eric Cantor, who was then the House majority leader. Mr. Brat was outspent by a margin of more than 10 to one. Despite that, he won by 11 percentage points, thus becoming the first primary challenger to oust a House majority leader in American history.

Ideologically, Mr. Brat and Mr. Mamdani have little in common. But they won their primaries for similar reasons: Each exploited the chasm between his party’s grass roots and its elites. In 2014 many Republican voters loathed the G.O.P. establishment. Today, many Democrats feel a similar fury toward the politicians who claim to represent them. In 2014 Mr. Brat

© The New York Times