Machines Can be Broken

Alexandria Ocasio-Cortez Defeats Joseph Crowley in Major Democratic House Upset

Representative Joseph Crowley of New York, once seen as a possible successor to Nancy Pelosi as Democratic leader of the House, suffered a shocking primary defeat on Tuesday, the most significant loss for a Democratic incumbent in more than a decade, and one that will reverberate across the party and the country.

Mr. Crowley was defeated by a 28-year-old political newcomer, Alexandria Ocasio-Cortez, a former organizer for Bernie Sanders’s presidential campaign, who had declared it was time for generational, racial and ideological change.

The last time Mr. Crowley, 56, even had a primary challenger, in 2004, Ms. Ocasio-Cortez was not old enough to vote.

Mr. Crowley, the No. 4 Democrat in the House, had drastically outspent his lesser-known rival to no avail, as Ms. Ocasio-Cortez’s campaign was lifted by an aggressive social media presence and fueled by attention from national progressives hoping to flex their muscle in a race against a potential future speaker.

Ms. Ocasio-Cortez had used Mr. Crowley’s role in the leadership, and the fact that he was the head of the local Democratic Party machine, against him in her bid to upend the existing political class. She will face Anthony Pappas, the Republican candidate, in the November general election.

[Read more on who Alexandria Ocasio-Cortez is and her history]

Mr. Crowley is the first House Democrat in the nation to lose a primary in 2018. His loss is most significant for a congressional incumbent since Eric Cantor, then the No. 2 Republican in the House, was defeated in 2014 to a Tea Party activist, David Brat.

Like that contest, the Crowley defeat is expected to shake up Congress, where Mr. Crowley was seen as a top contender to replace Ms. Pelosi, if she stepped aside after the midterms.

The race was not close. Ms. Ocasio-Cortez had more than 57 percent of the vote, with almost all precincts reporting.