Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE (D-Hawaii) is fundraising off her feud with former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE, asking supporters to donate to her presidential campaign and calling on Clinton to "face her directly" in the 2020 Democratic primary.

"Hillary Clinton accused Tulsi Gabbard — a combat veteran, soldier and Major in the Army National Guard — of being 'groomed' to be a 'Russian asset,'" reads a fundraising email sent by Gabbard's campaign on Saturday.

"Tulsi fights back and demands Hillary join the race and face her directly," it continues.

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Gabbard in the email said Clinton "finally came out from behind the curtain yesterday, accusing me of being a Russian asset" while asking supporters to pitch in $25 to her campaign.

"If this a fight she wants to have, one that has implications for all of us and the future of our democracy, then I challenge her to come out from behind her proxies and powerful allies in the corporate media, and face me directly," Gabbard added.

Clinton has repeatedly said that she is not running for president in 2020 but joked earlier this month that "maybe there does need to be a rematch" with President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE, to whom she lost in the 2016 election.

The former Democratic presidential nominee on Friday suggested in a podcast interview that Gabbard, who is campaigning in the 2020 Democratic race, was being groomed by Russia to run as a third-party candidate.

The former secretary of State said the Russians already have their “eye on somebody who’s currently in the Democratic primary and are grooming her to be the third-party candidate,” an apparent reference to Gabbard.

“She’s the favorite of the Russians. They have a bunch of sites and bots and other ways of supporting her so far,” Clinton added.

Gabbard denied Clinton's suggestion later Friday, reiterating that she would not run as a third-party candidate.

In her email on Saturday, Gabbard accused Clinton of being behind "a campaign to destroy my reputation" while reiterating her comments from the previous day calling the former secretary of State "the queen of warmongers, embodiment of corruption and personification of the rot that has sickened the Democratic Party for so long."

"We must not let Hillary Clinton and her establishment allies silence the voice of the American people and quash all those who dare to offer a dissenting voice in response to our corrupt status quo," Gabbard said in the email.