Former Rep. Beto O’Rourke (D-Texas) sparred with Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) over her proposed “wealth tax” to pay for her sweeping policy proposals at the Democratic presidential debate in Ohio on Tuesday night, calling her proposed policies “punitive.”

O’Rourke, one of several candidates to question Warren’s and Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE’s (I-Vt.) more liberal proposals, which include “Medicare for All” and a tax on the wealthiest Americans, said Warren “sometimes ... is more focused on being punitive or pitting one part of the country against the other instead of lifting people up.”

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“I’m really shocked than anyone thinks I’m punitive. I don’t have a beef with billionaires,” Warren responded.

O’Rourke was one of several candidates to accuse Warren of promoting policies too far to the left, with Sen. Amy Klobuchar Amy Klobuchar3 reasons why Biden is misreading the politics of court packing Social media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight MORE (D-Minn.) and entrepreneur Andrew Yang Andrew YangBiden's latest small business outreach is just ... awful Doctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls MORE also sparring with her on economic and health care issues.

“Medicare for All is the gold standard,” Warren said, adding, “I will not embrace a plan like Medicare for all who can afford it.”

Warren, who has been surging in recent polls, found herself the target of aggressive rhetoric from her fellow White House hopefuls on Tuesday night.