Philadelphia primary tests limits of US progressivism

Voters in Pennsylvania’s third congressional district head to the polls Tuesday to decide which progressive champion will represent them in the U.S. House, a race that underscores ideological divisions within the Democratic Party.

Four candidates are vying for the Democratic nomination: state Representative Chris Rabb, state Senator Sharif Street, pediatric surgeon Ala Stanford, and lawyer Shaun Griffith.

All four campaigns are markedly progressive, focusing on healthcare expansion, affordability, and housing.

Supporters say the race exposes fault lines within the Democratic Party as it seeks to rally opposition to Republican President Donald Trump in the 2026 midterm cycle.

Marc Stier, former director of the Pennsylvania Policy Center, noted few differences in the candidates’ platforms.

“They’re all opposed to Donald Trump. They’re all talking about civil rights, healthcare and voting rights,” said Stier, who backs Rabb. “So the differences aren’t that great.”

The race has drawn nationwide attention, including endorsements from top Democrats.

For Stier and other local experts, the divisions come down to a duel between ideals and pragmatism, and how the candidates wish to be perceived along that spectrum.

The primary is highly symbolic for the Democratic Party. Pennsylvania’s third congressional district is one of the most left-leaning areas in the US.

According to The Cook Political Report, the district was 40 percentage points more Democratic than the national average in the most recent presidential election.

That makes it a key party stronghold in a pivotal swing state: Pennsylvania has alternated between Democratic and Republican in the last four presidential races, most recently siding with Trump.

Since 2016, Democrat Dwight Evans has represented the area. But in June, he announced he would not seek reelection after a decade in Congress.

That opened a heated primary with no incumbent to lead the pack.

Street, Rabb, and Stanford are considered frontrunners. No independent polling exists, but candidate surveys show a volatile three-way contest.

An April poll sponsored by 314 Action, which supports Stanford, found the surgeon leading with 28 percent, followed by Rabb at 23 percent and Street at 16 percent.

A November survey sponsored by Street placed the state senator ahead with 22 percent, followed by Rabb at 17 percent and Stanford at 11 percent.

Each candidate has positioned themselves as the Democrat who will shake up the status quo and deliver results.

“The same old politics and the same old politicians are not going to cut it,” Stanford declared at a WHYY public radio forum in February.

“We need people who step up in a storm, who lead when others wilt away, and that’s what I’ve done and will do for this city.”

Differences exist in how the candidates present themselves.

Stanford campaigns as a political outsider whose public health advocacy offered critical leadership during the COVID-19 pandemic. This is her first political run.

Street is seen as a political veteran backed by party leadership. He entered the state Senate in 2017 as its first Muslim member; his father is a former Philadelphia mayor.

Rabb, a democratic socialist, has positioned himself as a firebrand progressive in the mold of New York Rep. Alexandria Ocasio-Cortez.

He has served in the state House since 2017, representing northwest Philadelphia.

All three embrace progressive causes: expanding affordable housing, widening healthcare access, and abolishing Immigration and Customs Enforcement (ICE), an agency accused of racial profiling and violent tactics.

Street has set himself apart by wedding his reputation to the Democratic establishment, serving as chair of the Pennsylvania Democratic Party from 2022 to 2025.

“Street has very strong relationships with the political machine here: the party establishment, the ward leaders and committee people, and other legislators,” Stier said.

Amid frustration with the Democratic Party after its 2024 presidential defeat, Street’s opponents have sought to distance themselves from the left-wing establishment.

“Rabb clearly says his goal is to push the envelope on issues and build public support for bolder ideas than Street is likely to push forward,” said Stier.

Stier acknowledges that some voters see progressives like Rabb as all talk and no action.

“As my ward leader says, Rabb is one of those people that makes a lot of speeches but doesn’t get much done,” Stier said.

He dismisses such remarks as hackneyed, calling them a standard attack from the establishment against outspoken figures who don’t always get along with party leaders in Harrisburg.

Lou Agre, a ward leader and retired lawyer, sympathizes with that critique.

Agre, former president of the Philadelphia Metal Trades Council, backs Street. He doubts Rabb’s progressive positions can yield tangible results.

“Street has always stood behind organised labour,” Agre said.

To Agre, Street represents experience while Rabb is heavy on rhetoric. “This is a race between a guy with a record and another guy who has a platform that he’s using to get a point across,” he explained.

Local leaders say the differences echo familiar arguments dividing centrist and progressive Democrats.

Those labels have translated into endorsements and behind-the-scenes party battles.

Axios reported this month that Pennsylvania Governor Josh Shapiro privately warned building trade unions that attacking Stanford could inadvertently help Rabb, who has criticized the governor.

Rabb has earned endorsements from prominent progressives including Ocasio-Cortez, Rep. Ilhan Omar, and Sen. Chris Van Hollen.

Street has become the candidate of choice for Philadelphia power brokers, including local labor unions, city council members, and Mayor Cherelle Parker.

Stanford has scored the endorsement of outgoing Rep. Evans, whom all three hope to succeed.

Tuesday’s primary will be decisive. The winner will almost certainly prevail in November’s general election; no Republican has filed a bid.

With the race split narrowly, the outcome may hinge on turnout and which candidate rallies the most supporters.

“If people come out to vote, if turnout is high in North and West Philadelphia, parts of the southwest and those neighbourhoods, then Sharif will win,” Agre said. “If not, who knows what will happen?”

He described Stanford, seen by some as a middle ground, as a complicating factor.

“Ala Stanford’s the wild card. Is she fading, or does she still have her slice of the electorate? I don’t know,” Agre said.

Stier acknowledged each candidate has a path to victory.

“There are pockets of support for all these candidates,” Stier noted.

He believes the more moderate approaches of Street and Stanford may open a path for Rabb.

“The winner of this race is not going to have a majority. Someone’s going to win this race with 35 to 40 percent of the vote,” he explained. “And I think Rabb’s campaign is expecting that Stanford and Street will split the more centrist vote, and he will get all the progressive votes, and he’ll run to victory that way.”