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Pappas wins New Hampshire Senate nomination over anti-Israel Dem activist

While an anti-Israel activist was defeated in the Senate primary, another prominent candidate who attacked AIPAC won her hotly contested congressional primary

(Joseph Prezioso/Getty Images)

New Hampshire Democratic Senate candidate, U.S. Rep. Chris Pappas (D-NH) speaks to supporters as he attends a canvass launch rally as he campaigns for office on September 6, 2026 in Manchester, New Hampshire.

Tuesday night’s Democratic primaries in New Hampshire delivered mixed results for candidates who made attacks on Israel a centerpiece of their closing arguments.

Rep. Chris Pappas (D-NH) trounced progressive activist Karishma Manzur by nearly a 2-to-1 margin (65%-33%) in the Senate primary, after Manzur attacked Pappas for his stance on Israel and called him a “shill for AIPAC” as a central message of her campaign.

Pappas is now facing a competitive general election against former Sen. John Sununu (R-NH), who is running to rejoin the Senate after nearly two decades out of office. Sununu is expected to be a formidable challenger who holds a narrow lead over Pappas in recent public polling.

The Cook Political Report rates the race as “Lean Democratic.” A longtime New Hampshire pollster told JI last week that Sununu is the underdog but is a strong and experienced candidate, and has a well-known and popular family name in the state, with a record of support from moderates and independents whom Pappas has previously worked to attract.

Pappas will likely be buoyed, however, by the strong national environment for Democrats, while Sununu will need to hold together a coalition of moderates skeptical of President Donald Trump and MAGA diehards in the GOP base.

Meanwhile, Stefany Shaheen, the daughter of Sen. Jeanne Shaheen (D-NH), narrowly beat military veteran and second-time candidate Maura Sullivan. Shaheen closed out the race with claims that AIPAC, which did not endorse and was not involved in either race, had been bundling contributions for Sullivan.

Shaheen’s advantage is partly attributable to her family name — but Sullivan came close to overcoming that advantage despite starting the race trailing Shaheen by double digits.

Shaheen went on air in the closing days of the race with ads accusing Sullivan of being “bankrolled” by AIPAC, and leaned into her opposition to Israel in interviews. Sullivan hit back in her own ad saying she doesn’t take any money from AIPAC.

Under pressure from the left in the wake of the war in Gaza, both Pappas and Sullivan recalibrated their stances on Israel during their primary races. Pappas, a pro-Israel moderate for most of his time in the House, backed away from his previous relationship with AIPAC and called for a “reset” of the U.S.-Israel relationship while voting “present” on an amendment to strip aid from Israel.

Democratic Majority for Israel and the Jewish Democratic Council of America congratulated Pappas on his victory.

Sullivan, who rejected efforts to cut aid to Israel earlier in the race, came around to supporting the suspension of at least some weapons sales to Israel.

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