A new poll commissioned by Democratic Majority for Israel’s political arm suggests that momentum is building for Wesley Bell as he prepares to take on Rep. Cori Bush (D-MO) in a hotly contested primary next week.

The poll shows Bell, the prosecuting attorney for St. Louis, with a six-point lead over Bush, a prominent Squad-affiliated lawmaker who has faced backlash from Jewish voters over her strident criticism of Israel. Among 400 likely Democratic primary voters surveyed between July 21-24, Bell led Bush, 48-42%, according to a polling memo shared on Monday.

His performance was an improvement over a previous poll released by DMFI PAC and conducted in mid-June, which showed Bell — at 43% — with a one-point lead in the race. Both polls were conducted by the Mellman Group. 

Other recent polls have shown Bell strongly positioned to prevail as he seeks to become the second challenger this cycle to unseat a Squad incumbent, replicating Westchester County Executive George Latimer’s victory over Rep. Jamaal Bowman (D-NY) in New York last month.

In an echo of that race, the St. Louis primary has quietly become one of the most expensive of the congressional cycle — with a diverse coalition of outside groups spending millions to boost Bell’s campaign. The biggest spender has been AIPAC’s super PAC, which has invested more than $7 million on ads and mailers.

For its part, DMFI PAC, which is also backing Bell, has spent nearly $500,000 in the race. “As voters hear from the candidates,” Mark Mellman, DMFI PAC’s chairman, said in a statement, “Democrats in Missouri’s 1st District are increasingly disillusioned with Bush and attracted to Bell.”