Chris Rabb, a far-left Pennsylvania state lawmaker carrying endorsements from "Squad" members and the Justice Democrats, won the crowded Democratic primary for Pennsylvania's 3rd Congressional District, a seat that covers the historic heart of Philadelphia and is rated the most Democratic in the country.
With no clear Republican challenger waiting in November, Tuesday night's result all but hands Rabb a seat in Congress. The district spans much of Center City, all of North Philadelphia and West Philadelphia, and ranks among the few Black-majority congressional districts in the nation.
The outcome is a clean win for the progressive left's candidate pipeline, and another warning sign for anyone who thought the Democratic establishment still controlled its own primaries in deep-blue urban America.
Rabb, 56, whose state legislative district covers Mount Airy and West Oak Lane, assembled a coalition built almost entirely on progressive infrastructure. He secured backing from the Working Families Party, the Justice Democrats, the group that helped launch Alexandria Ocasio-Cortez and other "Squad" members, and the Congressional Progressive Caucus PAC.
Rep. Gregorio Casar of Texas, Rep. Pramila Jayapal of Washington, and Rep. Maxwell Frost of Florida issued a joint statement calling Rabb a "social justice activist [and] an educator who helped unionize 1,500 adjunct professors and a legislator who has taken on Republicans and the billionaire class to create a democracy that works for everyone rather than just the wealthy few," as Fox News Digital reported.
That language, "the billionaire class," a "democracy that works for everyone", is boilerplate from the Bernie Sanders wing of the party. It tells you exactly where Rabb will sit when he arrives in Washington.
Rabb himself leaned into the framing. In his own statement, he described his campaign as "people-powered" and said his allies were "united in our fight to demand a prosperous future for the multiracial working class families and communities who are the heart of Philly and represent our city's incredible strength and potential."
The primary was not a coronation. State Sen. Sharif Street, son of former Philadelphia Mayor John Street, entered the race with a roster of establishment endorsements that would have been decisive in an earlier era of Philadelphia politics. Street had the backing of former Governor Ed Rendell, the Pennsylvania Democratic Party itself, and current Mayor Cherelle Parker.
Street, who previously chaired the state party, tried to frame himself as the authentic Philadelphian in a field of rivals.
"People who are from, live and can vote in Philadelphia have supported me. People who are from outside the city, they're cozying up to my opponents."
That quote, given to the Penn Capital-Star, carried a clear implication: Rabb's progressive backers were outsiders parachuting ideology into a local race. Voters apparently did not agree.
Street had also distinguished himself from the progressive left on at least one front. When an anti-Israel protest erupted in Rittenhouse Square earlier this year, Street spoke out forcefully, telling Fox News Digital that he "forcefully condemn[s] the antisemitic rally that took place today in Rittenhouse Square." That willingness to break with the activist left on antisemitism did not save his candidacy.
The race also included Dr. Ala Stanford, a pediatric surgeon who served as a Biden administration HHS appointee overseeing the agency's Region III, covering Pennsylvania, Delaware, Maryland, the District of Columbia, West Virginia, and Virginia. Stanford gained public attention during the pandemic for establishing a major 24-hour COVID-19 vaccine site at Temple University's Liacouras Center and reportedly making house calls to offer testing.
Her résumé, federal appointment, public health credentials, pandemic-era visibility, was not enough to overcome Rabb's progressive ground operation.
Rabb's own political history runs through the progressive left's institutional pipeline. He worked with Sen. Carol Moseley-Braun of Illinois in the 1990s, the first elected Black Democrat in the U.S. Senate. Two Black Republicans had been elected previously, in the 1880s, from Mississippi.
On the local level, Rabb picked up endorsements from Philadelphia City Council Minority Leader Kendra Brooks and Minority Whip Nicolas O'Rourke, both members of the Working Families Party. That party holds a unique position in Philadelphia politics. Republicans have just one member on the city council, longtime Northeast Philadelphia representative Brian O'Neill, whose presence is itself considered the "third party" in a city where the GOP barely registers.
Pennsylvania's 3rd Congressional District is not competitive in any meaningful sense. It is rated the most Democratic congressional district in the nation. The real election happens in the primary, and Tuesday's primary was a contest between the progressive left and the Democratic establishment. The progressive left won cleanly.
This matters beyond Philadelphia. The Justice Democrats and the Working Families Party have now demonstrated, again, that they can deliver victories in deep-blue urban primaries against candidates backed by sitting mayors, former governors, and state party organizations. The establishment endorsement slate, Parker, Rendell, the state party, lost to a coalition built on national progressive money and activist infrastructure.
For the Democratic Party nationally, the pattern is familiar. The party's urban strongholds keep sending members further to the left, which widens the gap between the caucus's progressive wing and whatever remains of its moderate center. Every Squad-aligned freshman who arrives in Washington makes it harder for Democratic leadership to hold the line on spending, policing, energy, or immigration.
With no clear Republican challenger, Rabb will almost certainly coast to victory in November. The 3rd District is the kind of seat where a Republican candidate is a formality, not a factor. That means voters in one of America's most historically significant cities, the place where the Declaration of Independence was signed and the Liberty Bell sits, will be represented by a lawmaker whose ideological allies include the most left-wing members of the House Democratic caucus.
The irony is hard to miss. Philadelphia is where the American experiment in self-government began. It is now sending to Congress a candidate whose backers openly talk about fighting "the billionaire class" and whose endorsement list reads like a roster of the Democratic Socialists of America's closest congressional allies.
The open question is whether this kind of primary result, progressive insurgent over establishment favorite, in a district with no Republican competition, continues to pull the House Democratic caucus leftward in ways that hurt the party in swing districts. Every deep-blue seat that goes to a Squad-aligned member gives the GOP a fresh talking point in competitive races: this is who runs the Democratic Party now.
Street's loss is a reminder that in today's Democratic primaries, a former state party chairman endorsed by the mayor and a former governor can still lose to a candidate backed by national progressive organizations. The power in the party has shifted, and it has not shifted toward the center.
Philadelphia's founders built a republic grounded in ordered liberty. The city's voters just chose a representative whose allies want to remake it from the left. The contrast speaks for itself.
