"Standing against genocide is good policy and good politics!" proclaimed the grassroots group Track AIPAC after Pennsylvania state Rep. Chris Rabb won the Democratic US House primary in the state's 3rd Congressional District in Philadelphia. Rabb, a democratic socialist, was outspoken in his criticism of Israel and the American Israel Public Affairs Committee (AIPAC) and his support of Palestinian rights during the campaign—aligning himself with a growing majority of Democratic voters while the pro-Israel lobby worked to secure a victory for one of his opponents, Dr. Ala Stanford. 314 Action Fund, a super political action committee (PAC) that supported Stanford, covertly received $500,000 from the powerful but increasingly toxic pro-Israel lobbying group, despite the fact that Stanford claimed she did not take money from AIPAC. Democratic Gov. Josh Shapiro, a vehement supporter of Israel who butted heads with Rabb over US Immigration and Customs Enforcement in the state, also reportedly worked behind the scenes to defeat the progressive. With 92% of votes in early Wednesday morning, Rabb had secured 44.3% of the vote compared to 24.1% for Stanford and 29.5% for a third candidate, Sharif Street. Chants of "AIPAC lost!" rang out at Rabb's victory party in Philadelphia. In a victory speech to supporters, Rabb said his campaign—which also centered on his calls for Medicare for All; a Civilian Climate Corps to work toward decarbonizing the US economy; and universal basic guarantees for housing, childcare, and other essentials—had been dismissed by the Democratic establishment"They told me this wasn't possible. That's what they said," said Rabb. "I don't know who 'they' are, but I know who we are. I'm looking at 'We the People.' And I'm not talking about 'We the People' 250 years ago. That was a much smaller 'we.'"Rabb was outspoken in his criticism of the Democratic establishment during his campaign, and said in a one interview that a key question facing the party is whether it is "prepared to listen to the base that demands this progressivism because what many people are calling progressive are pretty much standard things in other nations where universal healthcare is the thing, where there's no notion of healthcare insurance, it's just healthcare."Rabb secured endorsements from influential progressive leaders including US Reps. Alexandria Ocasio-Cortez (D-NY), Ro Khanna (D-Calif.), and Summer Lee (D-Penn.) as the election drew near.Should he win the general election in the deep-blue district in November, journalist Prem Thakker noted, he'll be one of at least four democratic socialists in the US Congress, including Ocasio-Cortez, Rep. Rashida Tlaib (D-Mich.), and Sen. Bernie Sanders (I-Vt.).Others whose primaries are coming up include former Rep. Cori Bush in Missouri and Darializa Avila Chevalier and state Rep. Claire Valdez in New York. Ryan Grim of Drop Site News credited progressive organizations, including pro-Palestine super PAC American Priorities and the Justice Democrats, with giving crucial support to Rabb's campaign. "And Rabb himself ran an exceptional race, building on years of relationships he built among progressives and activists in the city," said Grim. "And also AIPAC royally screwed up, got caught trying to spend money through 314 Action to prop up a flawed candidate, and then never recovered when she flopped."Khanna said that along with Tuesday night's loss in Kentucky of Republican Rep. Thomas Massie, who has joined Democrats in pushing for the release of files related to sex offender and President Donald Trump associate Jeffrey Epstein and for a stop to Trump's military assault on Iran, the primaries sent a clear message to candidates. "If you take a stand against war, AIPAC, and the Epstein class, you have no place in the Trump coalition," said Khanna. "But the future of the Democratic Party that is done with the establishment is yours to shape."