Progressive candidate Tiffany Cabán has declared victory in the Queens district attorney's battle, though the race remains too close to call.

Cabán, who has been endorsed by Sens. Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.) and Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) as well as Rep. Alexandria Ocasio-Cortez Alexandria Ocasio-CortezOn The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline McCarthy says there will be a peaceful transition if Biden wins Anxious Democrats amp up pressure for vote on COVID-19 aid MORE (D-N.Y.), is holding a slim lead in the race with 99 percent of precincts reporting.

The career public defender leads Queens borough president Melinda Katz by 1.3 percentage points, or 1,090 votes, according to The New York Times. Cabán declared victory around 11 p.m. Tuesday night, though Katz has not conceded.

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In the seven-candidate race, Cabán thus far has received 39.6 percent of the vote, compared Katz's 38.3 percent.

About 3,400 absentee votes have yet to be counted, and election officials have said that could take until Wednesday, July 3.

Cabán ran on a criminal justice reform platform that included calling for the closure of the Rikers Island prison, getting rid of cash bail and decriminalizing prostitution.

"Transforming this system will not be easy, and it will not happen overnight. But I am ready. We are ready," she tweeted late Wednesday.