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 TlaibNew progressive sheriffs in town ready to fight for Main Street On The Money: Shutdown Day 27 | Trump fires back at Pelosi by canceling her foreign travel | Dems blast 'petty' move | Trump also cancels delegation to Davos | House votes to disapprove of Trump lifting Russia sanction GOP lawmaker accuses Dems of 'empowering' anti-Semitism MORE (D-Mich.) on Thursday shot back at former Goldman Sachs CEO Gary CohnGary David CohnOn The Money: Shutdown Day 27 | Trump fires back at Pelosi by canceling her foreign travel | Dems blast 'petty' move | Trump also cancels delegation to Davos | House votes to disapprove of Trump lifting Russia sanction Gary Cohn criticizes the shutdown: 'Completely wrong' Ocasio-Cortez rips presence of lobbyists at orientation event 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 TrumpTrump knocks BuzzFeed over Cohen report, points to Russia dossier DNC says it was targeted by Russian hackers after fall midterms BuzzFeed stands by Cohen report: Mueller should 'make clear what he's disputing' 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.”

“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-CortezNew progressive sheriffs in town ready to fight for Main Street Meghan McCain on Ocasio-Cortez: She is 'just like Trump on Twitter' Ocasio-Cortez returns to 'The Late Show' on Monday 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.