"I am in that fight all the way", Warren said.
"Today, today, we come together ready to raise our voices together until this fight is won ..."
That challenge is on display this weekend as Democratic presidential contenders - or those considering a run - fan out across the crucial early-voting states.
Ms Warren delivered a call for change at her presidential kickoff, decrying a "middle-class squeeze" that has left Americans crunched with "too little accountability for the rich, too little opportunity for everyone else".
After her speech in Lawrence, Warren will head that same afternoon to an organizing event in Dover, New Hampshire.
What have Elizabeth Warren and the other 2020 US presidential candidates said about bitcoin?
Warren's nascent campaign has been plagued with controversy over a DNA test she took in the fall to show that she has some Native American heritage. On Saturday, she officially threw her hat into the ring during a a rally in Lawrence, Massachusetts. Warren in recent days offered apologies for claiming Native American identity, first privately to the leader of the Cherokee Nation and then publicly. Kirsten Gillibrand announced almost three weeks later that she was also launching an exploratory committee to challenge President Donald Trump in 2020.
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The Democrats are likely to meet resistance to their proposal in Congress, especially in the Republican-controlled Senate. Pelosi said the panel will "spearhead Democrats' work " on climate issues.
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The first storm of 2019 is to whip across Britain on Friday, bringing with it winds of up to 60mph and weather warnings. A yellow weather warning from the Met Office is now in place and will remain so until 6pm this evening.
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Expect the Wizards to remain active through Thursday's deadline to shed more salary and get out of the tax entirely. Since then, he has played 384 games, averaging 10.7 points, 5.0 rebounds, 1.4 assists and 1.18 steals per game.
The disclosure prompted yet another public apology from the senator, just days after she had expressed remorse to Cherokee leaders for using a DNA test a year ago to try to show her Native American ancestry. "I'm not taking applications from billionaires who want to run a super PAC on my behalf".
Warren frequently invokes her background of growing up in Oklahoma and recounts the emotional story of how her mother saved the family. A statement from his campaign manager Brad Parscale said, "The American people will reject her dishonest campaign".
"Since that day, I've never let anyone tell me that anything is 'too hard, '" she quipped.
Although dominating headlines with criticism of President Donald Trump, whose administration she labeled Saturday the "most corrupt in living memory", the senior senator has some political baggage of her own.
While Warren represents MA, she was born and raised in Oklahoma, attended college in New Jersey, and taught at law schools in Texas and Pennsylvania before teaching at Harvard.
Immediately following her Lawrence announcement, the senator embarked on a seven-state organizing tour to drum up support for her campaign in New Hampshire, Iowa, South Carolina, Georgia, Nevada and California - must-win early primary states. "And they enlisted politicians to cut them a bigger slice". Some of her grandchildren are also expected to be in attendance. Sens. Bernie Sanders (I-Vt.) and Amy Klobuchar (D-Minn.) are also expected to announce campaigns in the coming months. A year before any ballots are cast in a Democratic primary, many of those candidates are spending this weekend talking to voters in the early-nominating states of Iowa, New Hampshire and SC.