Massachusetts Sen. Elizabeth Warren penciled in her 2020 White House lotto ticket on Monday, staking out early territory in what will likely be a crowded field of Democrats itching for a swing at Donald Trump.

But Trump aides licked their chops and laughed as they anticipated a battle between the president and the ultra-liberal swashbuckler he regularly mocks as 'Pocahontas.'

'It's a dream come true,' said one official with knowledge of the president's thinking, adding a fond hope that Connecticut Sen. Richard Blumenthal would follow Warren into the race.

'Can we get Blumenthal to run too? More phony Democrats, please,' said the official, who is not authorized to speak to the media.

Trump has long been critical of Warren for claiming to have Cherokee ancestry, a move the president claims gave her preferential treatment in university hiring at Harvard and the University of Pennsylvania.

Warren conceded this month that she is 'not a person of color,' following her embarrassing October release of DNA test data that concluded her proportion of American Indian blood might be as small as 1 part in 1,024 – lower than average European-Americans.

How she announced: Elizabeth Warren used New Year's Eve morning to make her presidential move in a video recorded in her kitchen but slickly produced

She's (almost) running: Massachusetts senator Elizabeth Warren used New Year's Eve to announce she is setting up an exploratory committee for a 2020 bid

President Donald Trump has said he would love to face Warren, and has already spent two years publicly mocking her to soften the ground

Trump has similarly weaponized Blumenthal's past missteps, turning his military career into a case of stolen valor because he has falsely claimed to have fought in Vietnam.

Blumenthal served in uniform as a U.S. Marine reservist for six years but spent the war thousands of miles from harm's way.

A second administration official said Monday that Warren 'will go down in flames,' and cracked a subtle Native American joke.

'She's going to somehow ride her far-left platform into the White House?' the official asked.

'How?'

Warren's New Year's Eve launch guaranteed she had the nation's political spotlight largely to herself.

'America’s middle class is under attack,” the 69-year-old Massachusetts Democrat said in a launch video. 'How did we get here? Billionaires and big corporations decided they wanted more of the pie. And they enlisted politicians to cut them a bigger slice.'

She tried to strike a uniting tone, declaring that 'no matter what our differences, most of us want the same thing: 'to be able to work hard, play by the same set of rules and take care of the people we love. That's what I'm fighting for.'

The Republican National Committee blasted out a scathing reply.

Chairwoman Ronna McDaniel said that Warren 'couldn’t be more out of touch. With her lack of support from voters – including in her home state – on top of her phony claim to minority status, now that she is formally running Americans will see her for what she is: another extreme far-left obstructionist and a total fraud.'

Connecticut Sen. Richard Blumenthal is another liberal Democrat who Trump aides would like to see enter the 2020 contest, because of his false claims to have fought in Vietnam

On the blocks: In an email to supporters, Warren said she'd more formally announce a campaign plan early in 2019. She can now raise money for a run

Target: Donald Trump hit Elizabeth Warren repeatedly as a fake Native American and nicknamed her 'Pocahontas'

Warren burst onto the national scene a decade ago during the financial crisis with calls for greater consumer protections.

She quickly became one of the party's more prominent liberals even as she sometimes fought with Obama administration officials over their response to the market turmoil.

Now, as a likely presidential contender, she is making an appeal to the party's base. Her video notes the economic challenges facing people of color along with images of a women's march and Warren's participation at an LGBT event.

In an email to supporters, Warren said she'd more formally announce a campaign plan early in 2019.

Warren is the most prominent Democrat yet to make a move toward a presidential bid and has long been a favorite target of President Donald Trump.

In mid-December, former Obama housing chief Julian Castro also announced a presidential exploratory committee, which legally allows potential candidates to begin raising money. Outgoing Maryland Rep. John Delaney is the only Democrat so far to have formally announced a presidential campaign.

But that's likely to change quickly in the new year as other leading Democrats take steps toward White House runs.

Greatest hits: Trump is likely to make use of his previous assault on Elizabeth Warren's claims of Native American roots, which he stepped up in the wake of her DNA test

Warren enters a Democratic field that's shaping up as the most crowded in decades, with many of her Senate colleagues openly weighing their own campaigns, as well as governors, mayors and other prominent citizens.

One of her most significant competitors could be Sen. Bernie Sanders, a Vermont independent who is eyeing another presidential run harnessing the same populist rhetoric.

She must also move past the widely panned October DNA test stunt meant to bolster her claim to Native American heritage. Instead, the use of a genetic test to prove her ethnicity emboldened Trump's taunts of her as 'Pocahontas.'

There was no direct mention of the controversy, or of Trump, in Monday's video. It did include images of the president and his inner-circle current and former aides who her base most loves to hate: Kellyanne Conway, Stephen Miller and Steve Bannon.

Warren has the benefit of higher name recognition than many others in the Democratic mix for 2020, thanks to her years as a prominent critic of Wall Street who originally conceived of what became the government's Consumer Financial Protection Bureau.

She now faces an arduous battle to raise money and capture Democratic primary voters' attention before Iowa casts its first vote in more than a year.

She has an advantage in the $12.5 million left over from her 2018 re-election campaign that she could use for a presidential run.

Warren's campaign is likely to revolve around the same theme she's woven into speeches and policy proposals in recent years: battling special interests, paying mind to the nexus between racial and economic inequities.

'America's middle class is under attack,' Warren said in the video.

'How did we get here? Billionaires and big corporations decided they wanted more of the pie. And they enlisted politicians to cut them a fatter slice.'