Sen. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.) is firing back at President Trump after he called her "Pocahontas" and referenced her criticism of the Democrat's 2016 presidential primary.

Warren, seen as a leading Democratic contender in 2020 if she chooses to run for president, said Trump is trying "to change the subject" after his former campaign chairman, Paul Manafort, was charged as part of special counsel Robert Mueller's investigation into Russian meddling in the U.S. election.

"You might think your tweets are cute ... but they won’t stop Mueller's investigation or keep your people out of jail," Warren tweeted on Friday.

I understand your desperation to change the subject, @realDonaldTrump. Your campaign mgr was just indicted for conspiracy against the US. https://t.co/Bazcx4IbX2 — Elizabeth Warren (@elizabethforma) November 3, 2017

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Trump has called on the FBI to investigate Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE and the Democratic National Committee (DNC) over its political activities during the party's 2016 primary process.

Former interim DNC chairwoman Donna Brazile, in an excerpt from her new book, cites a fundraising agreement put into place before she took over as chairwoman as “proof” that the 2016 Democratic presidential primary was rigged in Clinton’s favor.

Warren, asked by CNN whether she thought the primary was rigged against Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.), Clinton's opponent in the race, offered a simple "yes" on Thursday.

That led Trump to mention her during a morning series of tweets. In doing so, Trump brought back his derisive “Pocahontas” nickname for Warren — a derogatory reference to her claims of Native American heritage.

"Pocahontas just stated that the Democrats, lead by the legendary Crooked Hillary Clinton, rigged the Primaries! Lets go FBI & Justice Dept," Trump tweeted.

Warren countered on Friday that while the Democratic Party "shouldn't play favorites ... that's a whole lot different from illegally conspiring with Russia. The FBI knows the difference."

"Slurs, lies & trash talk won’t stop the FBI from doing its job. This isn't a dictatorship. It's our democracy. And it's stronger than you," she added.

The DNC shouldn't play favorites. But that's a whole lot different from illegally conspiring with Russia. The FBI knows the difference. — Elizabeth Warren (@elizabethforma) November 3, 2017