Sen. Elizabeth WarrenElizabeth WarrenIn Washington, the road almost never taken Senate poised to battle over Biden's pick of big bank critic Treasury says more rental aid is reaching tenants, preventing evictions MORE (D-Mass.) responded simply "No" when asked in an interview if she is going to run for president — in the future tense — taking her denials a step further. 

Warren has long denied that she is running for president, but the liberal groups urging her to run have focused on her present tense phrasing of "I am not running for president," as possibly leaving the door open to deciding to run later on. 

ADVERTISEMENT

But in an interview in Fortune published Tuesday, Warren is asked, "Are you going to run for president?"  

Her response is one word: "No."

Warren's populist economic message and focus on income inequality has led liberal groups such as MoveOn and Democracy for America (DFA) to launch a campaign, which has gathered more than 200,000 signatures, calling on her to run, in what would likely be a challenge to Democratic front-runner Hillary ClintonHillary Diane Rodham ClintonDemocrats worry negative images are defining White House Heller won't say if Biden won election Whitmer trailing GOP challenger by 6 points in Michigan governor race: poll MORE.

MoveOn and DFA said in a joint statement that Warren's words were no different than in the past. 

"We understand that reporters are required to follow every twist and turn of the 2016 race, but let's be clear: This isn't a new position for Senator Elizabeth Warren. Sen. Warren has been clear for years that she isn't planning on running.  If she were running, there wouldn't be a need for a draft effort," the groups said.

"We launched the Run Warren Run campaign to show Senator Elizabeth Warren the tremendous amount of grassroots enthusiasm and momentum that exists for her entering the 2016 presidential race and to encourage her to change her mind."

Even if she doesn't run, Warren can still shape the presidential race as a liberal champion in the Senate.  

"They need to speak to America’s families about the economic crisis in this country," Warren said of the eventual Democratic nominee. "It starts with the recognition that Washington works for the rich and powerful, and not for America’s families. From there, it has to go into what changes we need to make, and that gets back to education, infrastructure and research."

Warren also left open the possibility of a Republican sounding those themes, when asked. On the Democratic side, Clinton has faced some skepticism due to her perceived closeness to Wall Street. 

"I think they might," Warren said of Republicans speaking to her issues. "But for both sides, the proof will be in the pudding. Who is willing to stand up for Wall Street accountability? Who is willing to take on the powerful by closing tax loopholes so that we have the money to invest in education, infrastructure, and research. Who’s willing to make the hard choices? The candidates need to say something concrete. This can’t be a silent game, with a lot of nice platitudes. There needs to be something real."

Warren has clashed with President Obama over changes to financial reform in the spending bill last month, and won a victory this week when investment banker Antonio Weiss, an Obama Treasury Department nominee, withdrew his name after strong opposition led by Warren. 

"Get out and fight for America’s families and be clear what you are fighting for," she said when asked for her advice for Obama. "Don’t just say it once. Give one speech, and then another, and then another. Talk to the Democrats on the Hill to propose the legislation that you want and invite the Republicans in. And ask if there is a way to do it together. But get out there and fight for our families; they need it."

— This post was updated at 1:10 p.m.