Washington (CNN)Sen. Elizabeth Warren may repeatedly say she isn't running for president in 2016, but don't tell that to the nation's largest liberal grassroots organization. MoveOn.org, an 8-million member liberal grassroots organization, is poised to kick off a $1 million campaign to draft Warren for president in 2016. The plan will be put to MoveOn members Tuesday morning, but because of the Massachusetts senator's popularity with the liberals, the plan is expected to easily pass. The campaign includes MoveOn.org opening offices and hiring staff in Iowa and New Hampshire, two states that are critically important in the presidential nomination process, and "the assembly of a national volunteer army ready to go to work if Sen. Warren enters the race." If passed, MoveOn will also begin producing "ads and media products that call attention to how Sen. Warren has stood up and fought for the middle class and her powerful vision for our country's future." "There is too much at stake to have anything other than our best candidates in the debate," Ilya Sheyman, executive director of MoveOn.org Political Action, said in a statement. "We are prepared to show Senator Warren she has the support she needs to enter—and win—the presidential race." Warren has said a number of times that she is not running for president, despite all the liberal excitement around her possible candidacy. Through her lawyer, Warren even disavowed Ready for Warren, a super PAC hoping to draft the liberal senator. "As Senator Warren has said many times, she is not running for president," Lacey J. Rose, Warren's press secretary, said on Tuesday. That said, should she decide to run, Warren would be far from the first presidential hopeful to backtrack on a pledge not to do so. "This is a huge opportunity for MoveOn members, if they choose, to inspire Senator Warren as she has inspired so many of us," said Anna Galland, executive director of MoveOn.org Civic Action. MoveOn's campaign is as much a boost to Warren as it is a slight to Hillary Clinton, the Democratic frontrunner for the 2016 nomination and someone who has failed to connect with some liberal activists. MoveOn organizers won't fault Clinton directly, but they regularly talk about finding a nominee that fits the moment for Democrats, not someone associated with what they see as a longtime rigged political system. Polling, however, has shown that self-identified liberals overwhelmingly back the former secretary of state. In a July CNN/ORC International Poll, 66% of liberals said they would back Clinton over people like Warren, Vice President Joe Biden and New York Gov. Andrew Cuomo. In the same poll, only 13% of liberal backed Warren. But in polls of strictly members of liberal groups, Warren fares much better. In a November poll of Democracy for America's one million members, Warren garnered 42% support, compared to 24% for Vermont Independent Senator Bernie Sanders and 23% for Clinton. MoveOn is not the only liberal political group pushing for a Warren run. Democracy for America said Tuesday it would poll its members about joining the "Draft Warren" effort. "Washington consultants can spout off a dozen reasons why Elizabeth Warren shouldn't run, but none of that beltway blather means a thing next to this one, simple truth: The Democratic Party and our country desperately need Warren's voice in the 2016 presidential debate," DFA Executive Director Charles Chamberlain said in a statement out Tuesday.

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MoveOn.org is a liberal grassroots advocacy group with 8 million members. There's a vote Tuesday on whether to back a campaign to draft Elizabeth Warren for 2016. The liberal group is widely expected to approve the vote and put $1 million into the campaign. MoveOn isn't the only group: Democracy for America is also polling its members.

A new deadline for a political framework agreement for Iran's Nuclear talks has been set for March 1, 2015, a Western diplomat tells CNN on Monday, with a deadline for final agreement including annexes on July 1. Negotiators had been scrambling to reach a deal on Iran's nuclear program before a Monday night deadline. The negotiators included representatives from Iran and the P5+1 countries -- the five permanent members of the U.N. Security Council (the United States, Russia, China, France and Britain), plus Germany. The parties involved will release a statement Monday citing "good progress" from their talks in Vienna, a Western diplomat told CNN. The negotiations will reconvene at a lower level -- below the level of foreign ministers -- in the coming weeks. A deal could have brought an end to significant sanctions against Tehran and a warming of relations with the West. The absence of a deal could ramp up tensions and could lead to more punitive measures -- and even confrontation -- over Iran's controversial nuclear program. Iran insists that like other countries, it has a right to develop nuclear power for peaceful purposes. But Western powers have accused Iran of trying to develop nuclear weapons as well. And the head of the International Atomic Energy Agency, who was not part of the Vienna talks, said last week that Iranian authorities continue denying his agency access to a sensitive military complex suspected of being a site of nuclear activities. Major disagreement. One of the primary sticking points in this round of talks has been how to lift sanctions against Iran. Hardliners in Iran have insisted that significant sanctions be lifted right away as a sign of good faith from the P5+1 countries. Such penalties, including banking and energy sanctions, would affect tens of billions of dollars. Earlier this month, 200 Iranian members of parliament signed a statement demanding that Iranian negotiators "vigorously defend" the country's nuclear rights and ensure a "total lifting of sanctions." International nuclear watchdog: Iran needs to cooperate. But P5+1 members have said they'd prefer to lift the sanctions incrementally so they can have leverage on Iran and to make sure Tehran makes good on its commitments to whatever deal is reached. Media in Tehran were skeptical about a resolution before the Monday night deadline. Reaching a deal by the deadline "would be impossible" based on the differences that remain between negotiators, the Iranian Students' News Agency reported Sunday, citing an unidentified Iranian official involved in the talks. Before Monday's extension of talks, a U.S. State Department official said negotiators had been "chipping away" at the issues. "The focus of discussions remains on an agreement, but we are discussing both internally and with our partners a range of options for the best path forward," the official said. This isn't the first time negotiations over Iran's nuclear program have been extended. The previous deadline had been pushed back four months, to this round of talks. Pressure on both sides. Both Iranian and American officials will face a difficult political environment at home as they return without a deal. U.S. President Barack Obama and Iranian President Hassan Rouhani have faced domestic political pressure to strike a deal. An extension could sharpen opposition both in the United States and in Iran. In the United States, Republicans will control the Senate in January, and lawmakers have threatened fresh sanctions on Iran if a deal is not reached. Although Obama has the power to veto, just the prospect of additional sanctions could drive Iran away from the table. Will Congress kill an Iran nuclear deal? Obama has said that if an agreement is reached, he thinks he can get the approval of Congress and Americans at large. "I'm confident that if we reach a deal that is verifiable and assures that Iran does not have breakout capacity, that not only can I persuade Congress, but I can persuade the American people that it's the right thing to do," he said in an interview aired Sunday on  ABC's "This Week." But the senior U.S. State Department official told CNN on Sunday that the Iranians "still have big decisions that need to be made."

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Western diplomat says new deadlines were set for March 1 and July 1. Negotiators had been scrambling to reach a deal before a Monday night deadline. Hardliners in Iran want significant sanctions lifted right away. Others want to lift sanctions incrementally to make sure Iran makes good on promises.