"Yeah. Donald Trump is the symptom of a badly broken system", Warren said.
Warren would be contesting against incumbent President Trump, who on one occasion called her "Pocahontas" due to her alleged Native American ancestry.
According to details provided by a campaign aide after Warren's appearance at the National Indian Women Honor Luncheon, she introduced Wampanoag Tribe of Gay Head Aquinnah chairwoman Cheryl Andrews-Maltais, a tribal leader and former senior advisor to the assistant secretary of Indian Affairs during the Obama administration. In that speech, she promised to stand up for Native American issues and insisted, "I never used my family tree to get a break or get ahead".
She came under heavy criticism from both Republicans and Democrats for falsely claiming Native American ancestry on several professional documents, including her application to Harvard Law School, which later claimed her as a "minority".
Warren has said the story of Pocahontas long has "been taken away by powerful people who twisted it to serve their own purposes". The senator was introduced by New Mexico Rep. Deb Haaland, one of the first two Native American women elected to Congress a year ago. "And what are we, as candidates, as activists, the press, going to do about it?"
She also slammed Trump over his tweets, calling them "racist" and "hateful" and called for her supporters to ignore the President's comments and not to merely respond to every single action of Trump's. "Are we going to let him use those to divide us?"
Shivansh AhujaSen. Elizabeth Warren speaks during a campaign rally in the IMU on Sunday
Warren officially announced over the weekend that she was running for president.
The president is under the microscope from the special counsel on whether or not his campaign colluded with Russian Federation in 2016, from the Southern District of NY about his business practices and from a slew of congressional committees on both matters.
On Saturday, Trump appeared to invoke the Trail of Tears, the infamously cruel forced relocation of Native Americans in the early 19th century that caused thousands of deaths, when he mocked Warren on Twitter: "See you on the campaign TRAIL, Liz".
Warren purposely claimed to be an "American Indian" on her Texas State Bar registration card, which is fraud.