Incoming Dem lawmaker fires back at Trump's former economic adviser: ‘No Gary, YOU don't know what's coming’

Rep.-elect Rashida TlaibRashida Harbi TlaibTrump attacks Omar for criticizing US: 'How did you do where you came from?' George Conway: 'Trump is like a practical joke that got out of hand' Pelosi endorses Kennedy in Massachusetts Senate primary challenge MORE (D-Mich.) on Thursday shot back at former Goldman Sachs CEO Gary CohnGary David CohnGary Cohn: 'I haven't made up my mind' on vote for president in November Kushner says 'Alice in Wonderland' describes Trump presidency: Woodward book Former national economic council director: I agree with 50 percent of House Democrats' HEROES Act MORE for comments he made while addressing new members of Congress at Harvard Kennedy School's Institute of Politics.

Cohn, who resigned as President TrumpDonald John TrumpFive takeaways from Trump-Biden debate clash The Memo: Debate or debacle? Democrats rip Trump for not condemning white supremacists, Proud Boys at debate MORE's top economic adviser in March, was among several speakers during a bipartisan orientation program this week at Harvard.

Tlaib said on Twitter that Cohn told incoming lawmakers: “You guys are way over your head, you don't know how the game is played.”

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“No Gary, YOU don't know what's coming - a revolutionary Congress that puts people over profits,” Tlaib tweeted.

The orientation at Harvard has been dubbed by the university as an event where newly elected lawmakers can “learn practical skills of lawmaking just one month prior to taking the oath of office.”

In addition to Cohn, speakers included Mary Barra, the chairman and CEO of General Motors, and Arthur Brooks, president of the right-leaning American Enterprise Institute.

Rep.-elect Alexandria Ocasio-CortezAlexandria Ocasio-CortezDemocrats rip Trump for not condemning white supremacists, Proud Boys at debate Trump Jr on father's taxes: 'People don't understand what goes into a business' Ocasio-Cortez: Trump contributed less in taxes 'than waitresses and undocumented immigrants' MORE (D-N.Y.) voiced criticism of the event on Thursday, saying their were several corporate CEOs but no labor leaders in attendance.

Tlaib, a former Michigan state representative, defeated five other candidates in Michigan's Democratic primary earlier this year and ran unopposed in November. She has championed policy efforts such as "Medicare for all" and a $15 minimum wage.