ABC News

NEW YORK-Massachusetts Sen. Elizabeth Warren lit up a crowd of Democratic activists and donors today speaking at a fundraiser for a powerful group that backs women candidates, just across town at the same time Hillary Clinton kicked off the Clinton Foundation's annual Clinton Global Initiative conference.

Warren received two standing ovations from the group of women at Emily's List, but it was clear Clinton was on their mind.

"This is an exciting time and we at Emily's List we know and we believe we will have a woman running for president in 2016," Emily's List President Stephanie Schriock said to cheers from the crowd right before Warren took the stage. "We sure hope that Secretary Clinton takes the time she needs, but we also sure hope she takes this on because we are ready. We are ready."

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The former Secretary of State has said she will make her mind by the end of this year. Warren has said repeatedly , "I am not running for president," choosing not to expand on whether she could run in the future. Warren is very popular with the progressive left of the Democratic Party, many who remain unsure about Clinton. A group " Ready for Warren" launched to encourage her to run, mimicking the "Ready for Hillary" campaign that has brought in millions and is well organized across the country. Warren disavowed the Ready for Warren group, but it hasn't stopped her supporters from hoping she changes her mind.

After Warren spoke, Michigan Sen. Debbie Stabenow also mentioned Clinton saying she "really hope(s) I can call her something else…I think Madam President sounds awfully good."

Warren headlined the fundraiser today at the Mandarin Oriental, where she spoke about the fast-approaching midterm elections and the importance of recruiting female Democratic candidates.

"It truly matters and it matters not just because women win. It matters because it means we have a seat at the table," Warren said to the over 300 attendees. "And everybody in this room knows the basic rule, if you don't have a seat at the table, you are probably on the menu."

Over the next three days, Clinton, alongside her husband former president Bill Clinton, and daughter, Chelsea, will engage in moderated discussions and panels with key global leaders, including announcing a large commitment regarding secondary education for girls around the world.

At a CGI event Sunday night, the former president called Warren an "important part" of the Democratic Party's future because of her signature message of giving Americans "an equal shot at prosperity."

Today, Warren roused the crowd speaking about reproductive rights and income equity saying to applause, "Women have an opportunity to change, to change the government, to change the direction this country goes…we have a chance, but we have to fight for it and me, I'm out there fighting for it."

She mentioned the several Senate female incumbents and challengers who are in tough November fights including Sen. Kay Hagan in North Carolina, Sen. Jeanne Shaheen in New Hampshire, Alison Lundergan Grimes in Kentucky, and Michelle Nunn in Georgia.

"We are here and we are going to change this country, our voices will be heard," she said. "There is so much at stake in this election…women across this country our going to make a difference."

In a lighter moment, Warren noted the "terrible parts about running for office," including negative ads.

"Where do they get those pictures of you? I don't look that bad when I first wake up in the morning," Warren said to laughs. "And the creepy music. There was one ad that seemed to suggest I was going to eat voters' brains."

ABC's Liz Kreutz contributed to this report.