Former Trump campaign manager Corey Lewandowski Corey R. LewandowskiHow Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event Bannon, three others charged with defrauding donors of 'We Build The Wall' campaign MORE on Tuesday dismissed a story from a Democratic strategist about a 10-year-old girl with Down syndrome being separated from her family while illegally entering the U.S.

“I read today about a 10-year-old girl with Down syndrome who was taken from her mother,” Zac Petkanas, who formerly served as the rapid response director for Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE's campaign, said during an appearance on Fox News opposite Lewandowski.

Lewandowski interrupted, mockingly interjecting, “womp womp.”

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“Did you say 'womp womp' to a 10-year-old with Down syndrome?” Petkanas asked Lewandowski.

"How dare you!" Petkanas said repeatedly as the pair continued to talk over each other.

.@Zac_Petkanas says on Fox News a 10-year-old girl with Down Syndrome was separated from her mother at the border.



Corey Lewandowski responds: "Womp womp." pic.twitter.com/cZMXWmwbjw — Jon Passantino (@passantino) June 19, 2018

The heated exchange follows a report published by the The Wall Street Journal hours earlier in which Mexico’s Foreign Minister Luis Videgaray claimed a 10-year-old girl with Down syndrome was was taken from her mother and brother while the family illegally entered the U.S.

The incident was one of many being highlighted by members of both parties who have vocally criticized the Trump administration's "zero tolerance" immigration policy that has led to at least 2,000 children being separated from their families over six weeks.

The Department of Justice moved earlier this year to prosecute illegal border crossers to the fullest extent of the law, resulting in children being separated from their families and detained as the adults are prosecuted.