By Chris Bell BBC News0
4 January 2019
The video was part of a meme circulating at the time.
Participants, including Alexandria Ocasio-Cortez and other students at Boston University, emulated the dance from 1980s movie The Breakfast Club in a mash-up featuring the song Lisztomania, by French indie band Phoenix.
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Since beating veteran Democrat Joe Crowley in a New York congressional primary in July 2018 , Ms Ocasio-Cortez has been subject to unusually intense scrutiny from some conservative critics, particularly online.
Ms Ocasio-Cortez has spoken of her financial struggles, and many of those conservative critics seek to portray her concerns as disingenuous.
In November a Washington Examiner journalist was criticised for a “sexist” tweet, subsequently deleted, in which he posted a picture of Ms Ocasio-Cortez from behind.
“I’ll tell you something: that jacket and coat don’t look like a girl who struggles,” he wrote.
Fox and Friends host Katie Pavlich said Ms Ocasio-Cortez represented “hypocrisy at its best” and had “expensive tastes for a socialist” after she wore expensive clothes, which she did not keep, for a magazine photo shoot.
More recently, right-wing political website the Gateway Pundit has published images from Ms Ocasio-Cortez’s high school yearbook in an effort to portray her as part of a wealthy elite.
However, the congresswoman had less than $7,000 (£5,500) in savings, her director of communications told CNBC in November .