WikiLeaks: Podesta agrees Sanders needs to be 'ground to a pulp'

Hillary ClintonHillary Diane Rodham ClintonWhat did Peter Strzok do? The strategic blunder of ‘Trump-as-Hitler’ Races to watch in Tuesday’s primaries MORE's campaign chairman John Podesta said in a February email he agreed that Sen. Bernie SandersBernard (Bernie) SandersTrump's move to halt family separations leaves questions unanswered Sanders: 'Democrats have been serious about comprehensive immigration reform' Races to watch in Tuesday’s primaries MORE needed to be "ground to a pulp," according to emails released by WikiLeaks.

The message, dated Feb. 21, shows Joel Johnson, the managing director at the Glover Park Group and a former adviser to President Bill ClintonWilliam (Bill) Jefferson ClintonBest-selling author jokes he knows 'what Pence must feel like' on book tour with Bill Clinton Bill Clinton blasts family separation: 'Children should not be bargaining chips' In memory of Charles Krauthammer, an American genius and dear friend MORE, telling Podesta that the Vermont Independent and then-presidential candidate needed to be taken down.

"Bernie needs to be ground to a pulp," Johnson said in the email, according to WikiLeaks.

"We can't start believing our own primary bull----. This is no time to run the general. Crush him as hard as you can. Other than that, hope all is well and congrats on Nevada!"

The email was sent during the primaries, when Clinton was competing with the Vermont senator.

"I agree with that in principle," Podesta responded. "Where would you stick the knife in?"

Johnson responded that Sanders should be framed as an "Obama betrayer," "hapless legislator," "false promiser" and a candidate who "can't win."

Sanders endorsed Clinton after she clinched the nomination and has been campaigning for her in recent weeks.

Other leaked emails have also shown Clinton campaign officials talking negatively about the Vermont senator.

The Clinton campaign has refused to acknowledge the authenticity of the messages, which security experts believe were stolen from Podesta's account by Russian hackers.