The Working Families Party (WFP) has endorsed Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) for the Democratic presidential nomination, the group announced Monday.

"The Working Families Party is proud to announce our endorsement of @ewarren for president in the Democratic primary," the group tweeted.

The Working Families Party is proud to announce our endorsement of @ewarren for president in the Democratic primary. #WFP2020 #WFP4Warren pic.twitter.com/HnVofql6Xp — Working Families Party (@WorkingFamilies) September 16, 2019

The progressive group, which is aligned with unions, endorsed Sen. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.) last campaign cycle, but this time picked Warren amid a push to defeat centrist candidates like former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE in the race for the Democratic nomination.

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“If our focus is on victory, we can’t be delusional about it,” Maurice Mitchell, the WFP's national director, told The New York Times.

“You don’t defeat the moderate wing of Democrats through thought pieces or pithy tweets, you defeat their politics through organizing.”

A party spokesperson said Warren received more than 60 percent of the votes on the first ballot of the “tens of thousands” of members.

Mitchell and other WFP members told the Times that their endorsement is a message to other progressive organizations to involve themselves in the primary.

“Senator Warren knows how to kick Wall Street kleptocrats where it hurts, and she’s got some truly visionary plans to make this country work for the many," Mitchell said.

“We need a mass movement to make her plans a reality, and we’re going to be a part of that work.”

Sanders finished second in the WFP's ranked-choice endorsement system between five candidates, according to the Times.

Other candidates under consideration were former Housing and Urban Development Secretary Julián Castro, Sen. Cory Booker Cory Anthony BookerThe movement to reform animal agriculture has reached a tipping point Watchdog confirms State Dept. canceled award for journalist who criticized Trump 3 reasons why Biden is misreading the politics of court packing MORE (D-N.J.) and New York City Mayor Bill de Blasio Bill de BlasioOVERNIGHT ENERGY: California seeks to sell only electric cars by 2035 | EPA threatens to close New York City office after Trump threats to 'anarchist' cities | House energy package sparks criticism from left and right EPA threatens to close New York City office after Trump threats to 'anarchist' cities New Year's Eve in Times Square to be largely virtual amid pandemic MORE.