Update: Nov. 28, 2018. The House Democratic Caucus on Wednesday voted 123-113 to elect Rep. Hakeem Jeffries over Rep. Barbara Lee as caucus chair.

A coalition of progressive organizations and activists is running an outside campaign to elect California Rep. Barbara Lee as chair of the House Democratic Caucus ahead of the Wednesday vote. The campaign represents something of a departure for progressive organizations, which tend not to participate in a highly organized way in internal House Democratic elections.

No similar progressive campaign is being run for any other position, including speaker, majority leader, majority whip, or chair of the Democratic Congressional Campaign Committee, a powerful position with the ability to allocate resources in primaries and general elections around the country.

The effort also serves as a dry run for what could be a broader campaign in two years to install progressives throughout House leadership, flexing muscles that have long laid dormant.

Lee announced her interest in the position shortly after Alexandria Ocasio-Cortez upset the outgoing caucus chair, New York Rep. Joe Crowley. Ocasio-Cortez floated her name as a potential candidate for speaker, but Lee is an ally of Nancy Pelosi’s and was unlikely to challenge her directly.

For months, the race to replace Crowley was between Lee and California Rep. Linda Sánchez, who beat Lee in a narrow election for the No. 5 position two years ago. But shortly after Election Day, Sánchez withdrew her bid citing “an unexpected family matter,” which turned out to be her husband’s indictment on federal criminal charges.

Lee, in a statement to The Intercept, framed her campaign as one of inclusive leadership and smashing glass ceilings. “Our party is strongest when every member — from every district, region, background, and ideology — has a seat at the table. I’m running for Democratic Caucus Chair because I want to ensure every voice is represented in leadership,” said Lee.

“My late mentor, our unbought and unbossed trailblazer Shirley Chisholm, broke many glass ceilings and made it possible for other African American women to follow in her footsteps. On the 50th anniversary of her historic election to Congress, I’m honored to carry on her legacy and open the door for more inclusive leadership and policies.”

New York Rep. Hakeem Jeffries, a young lawmaker seen as one of the party’s rising stars, jumped into the race that same day. Both Jeffries and Lee are members of the Congressional Black Caucus and the Congressional Progressive Caucus, but Jeffries is viewed as the more moderate of the two. Jeffries is regarded as a close ally of Pelosi’s as well.

The push to elect Lee is being led by progressive activist Ady Barkan and groups including Democracy for America, Indivisible National, MoveOn, NARAL, National Organization for Women, and the People for Bernie Sanders. (The Intercept has created a fellowship in honor of Barkan, who is dying of ALS.)

Lee, a prominent progressive who’s best known for being the only member of Congress to vote against the Afghanistan War in response to the September 11 attacks, would be the first black woman to hold a leadership position in either party.

“We are optimistic that the Democratic Caucus will elect Rep. Lee as Chair on Wednesday morning. All of the energy in the Democratic Party over recent years has been from the progressive base. And there is finally an acknowledgment — even from white progressives — that Black women are the most reliable and important constituency within the Party,” Barkan, who has lost much of his ability to speak, said in an email. “It’s high time that their contributions be respected and reflected in Democratic leadership. We hope that members of Congress are hearing the enthusiasm for Lee and will make the smart vote on Wednesday.”