Ralph Nader, a former Green Party presidential candidate, pointed to Sens. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) and Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.) as the future of the progressive movement, predicting Warren would be ready to run for president in 2020.

The Democratic Party is "not organized sufficiently," Nader told WNYC in a Wednesday interview. "Bernie Sanders helped congeal this progressive opinion but when he was aced out ... he supported Clinton without any qualifications. And now those millions of people are not organized."

Nader said massive rallies are the way to solidify the progressive movement, and called on Sanders and President Obama to spearhead such events.

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"I've suggested [Sanders] should hold massive rallies ... in order to bring visibility and cohesion behind his agenda," Nader said, adding that Obama could do the same in his final weeks as president and address "a thousand civic leaders."

"They have to go back to the reservoir for democracy ... citizen groups ... mobilize people to get out and vote ... to run as candidates at the local, state and national level. If we don’t pay attention to the citizen groups, we’re going to be distracted by evermore entertaining, corrupt and outrageous politics," Nader said.

When asked about the future of the progressive movement, Nader said he sees Warren as a potential candidate in 2020.

"I think it's clearly Senator Elizabeth Warren's turn," Nader said. "I think Elizabeth Warren is going to step up. She's next in line. And she has a terrific way of talking to regular people around the country and she comes from Oklahoma and poor income family roots and she has not indicated anything, obviously it's too early, but I think she's going to be ready."



Warren was pressured unsuccessfully to run in 2016 and speculation about a 2020 run has been circulating since the election of Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE.

Adam Green, who co-founded the Progressive Change Campaign Committee, told Time magazine that Warren “would make a wonderful president," but Warren has so far not stated any intent to run.

She told a local Massachusetts TV station that a White House bid next cycle wasn’t on her “radar screen" and when pressed if she would consider a run in the future, she shot back:, “Oh, come on.”