Democratic Socialists of America see membership spike after Ocasio-Cortez win
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The Democratic Socialists of America (DSA) said its membership numbers hit a record high after Alexandria Ocasio-Cortez (D) stunned the Democratic establishment by beating Rep. Joe CrowleyJoseph (Joe) CrowleyYoung insurgents aren't rushing to Kennedy's side in Markey fight Ocasio-Cortez chief of staff to leave her office Ocasio-Cortez about as well known as top Democrats: poll MORE (D) in a New York primary race.

Lawrence Dreyfuss, program associate for DSA, told The Hill that the political organization surpassed 40,000 members on Thursday, two days after Ocasio-Cortez, a DSA member and first-time candidate, emerged victorious.

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Ocasio-Cortez, 28, previously worked as an organizer for the 2016 presidential campaign of Sen. Bernie SandersBernie SandersGun control: Campaigning vs. legislating Booker defends middle-ground health care approach: 'We're going to fight to get there' Sunday shows preview: Democratic candidates make the rounds after debate MORE (I-Vt.).

The day after she won the Democratic nomination, the group had 1,152 people join its ranks — 35 times more than an average day. The last time they saw a similar increase was the month after President TrumpDonald John TrumpHarris bashes Kavanaugh's 'sham' nomination process, calls for his impeachment after sexual misconduct allegation Celebrating 'Hispanic Heritage Month' in the Age of Trump Let's not play Charlie Brown to Iran's Lucy MORE was elected, when six times as many people joined compared with the previous month.

Since November 2016, nationwide membership for DSA has jumped from 5,000 to 40,000. 

The Daily Beast first reported on the membership surge.

Ocasio-Cortez ran on a platform to the left of her opponent — the No. 4 House Democrat and chairman of the House Democratic Caucus.

Despite defeating the 10-term congressman, Ocasio-Cortez defended him on Thursday after attacks from President Trump.

“It is unacceptable to be disrespectful of Congressman Crowley,” Ocasio-Cortez told CNN. “He’s done some phenomenal, phenomenal work for the Bronx and Queens."

The previous day, Ocasio-Cortez said she would support impeaching Trump if she won the general election in November.