Alexandria Ocasio-Cortez, the high-profile Democrat about to take office as the youngest congresswoman in history, fended off criticisms that she misrepresented where she grew up by comparing the argument to “birther” conspiracy theories.

Ocasio-Cortez has become a face of a new movement of young, liberal-leaning Democrats in the country and in turn has become a favorite target of conservative pundits and social media trolls.

This week, she was again responding to accusations she has misrepresented herself as a Bronx girl despite having grown up and gone to school in suburban Yorktown in northern Westchester County.

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The latest round of social media back and forth over her residency was set off Thursday when Ocasio-Cortez posted a photo on Twitter of the plaque on the door of her office that listed her as a member of the U.S. House of Representatives. It paraphrased J-Lo’s song “Jenny from the Block.”

“Don’t be fooled by the plaques that we got, I’m still / I’m still Alex from the Bronx,” Ocasio-Cortez wrote.

Michael Knowles, a political commentator who writes for the conservative site The Daily Wire, replied back in a series of Tweets. “You misspelled ‘Westchester County’” said one. Knowles, known for writing a book of blank pages called “Reasons to Vote For Democrats,” also noted the average household wealth in Yorktown.

On Friday, Ocasio-Cortez responded in another tweet, “As everyone knows, I grew up between two worlds + experienced 1st hand how a child’s zip code can shape their destiny. It was scrubbing those households’ toilets w/ my mother that I saw and breathed income inequality. I decided to make a difference. You decide to do this.”

She said in a separate tweet that Knowles was “mansplaining” her own childhood.

John Cardillo, a host on Newsmax who had previously made an issue of Ocasio-Cortez’s background and posted a photo of the house she lived in with her parents, said she “flat out lied” about her background.

Ocasio-Cortez responded that going to public school in Yorktown had always been how she “told the story of income inequality.”

“You didn’t even know who I was 7 months ago,” she tweeted. “You’re not gonna ‘birther’ me now.”

"Birther" is a term used for conspiracy theorists who questioned that former President Barack Obama was born in the United States.

Ocasio-Cortez gained national attention when she unseated 10-term incumbent U.S. Rep. Joe Crowley in a Democratic Party primary for the 14th Congressional District in New York, which includes part of the Bronx and Queens.

Her campaign website bio at the time stated, “She ended up attending public school 40 minutes north in Yorktown, and much of her life was defined by the 40-minute commute between school and her family in the Bronx.”

She later changed that sentence to say, “She ended up attending public school in Yorktown, 40 minutes north of her birthplace. As a result, much of her early life was spent in transit between her tight-knit extended family in the Bronx & her daily student life."

Ocasio-Cortez was 2 years old and living with her family in the Parkchester area of the Bronx when her father bought a modest home in Yorktown. The family moved there several years later and Ocasio-Cortez graduated Yorktown public schools in 2007 before attending Boston University.

Voting records show she registered to vote as a Westchester resident in 2008 and changed her address to the Bronx in October 2016.

Ocasio-Cortez will take office Thursday. She had campaigned in favor of Medicare for all, a $15 minimum wage, federal legalization of marijuana and abolishing ICE, the Immigration and Customs Enforcement office.

Follow Mark Lungariello on Facebook: @lungariello; and Twitter: @marklungariello.