Daniel Biss Secures Illinois House Nomination Despite Millions in Outside Attack Ads

2026-03-18 politics

Chicago, Wednesday, 18 March 2026.
Evanston Mayor Daniel Biss secured the Democratic nomination for Illinois’ 9th District, defeating progressive challenger Kat Abughazaleh while successfully weathering over $5 million in targeted outside attack ads.

The Financial Battleground and Lobbying Influence

The primary race became a focal point for national political observers due to the staggering influx of campaign cash, particularly from political action committees (PACs) affiliated with the American Israel Public Affairs Committee (AIPAC) [2][6]. Across four Chicago-area congressional primaries, total spending approached 61.8 million, comprising $30.4 million in direct contributions to candidates and $31.4 million from outside groups [6]. Of that outside money, at least $19 million was directly tied to AIPAC-aligned organizations [6]. In the 9th District alone, State Senator Laura Fine benefited from more than $6 million in ad spending, which included over $5 million from Elect Chicago Women, a super PAC linked to AIPAC [4]. Meanwhile, groups like Elect Chicago Women and the Chicago Progressive Partnership spent $2.6 million expressly targeting Biss and Abughazaleh [5]. Direct fundraising also reached notable heights; Abughazaleh raised $3.4 million, outpacing Biss by 0.9 million, as both Biss and Fine raised $2.5 million each [4].

Generational Shifts and Progressive Platforms

The ideological contours of the race presented a stark contrast between established progressive pragmatism and a younger, anti-establishment movement. Abughazaleh, who relocated to Chicago in 2024, ran an unapologetic campaign to the left of Biss, criticizing standard political compromise and demanding immediate systemic overhauls [1][3]. She argued that bipartisanship should not mean abandoning core goals like universal affordability for housing, healthcare, and groceries [1]. In contrast, Biss leaned on his deep roots in the district and his legislative experience [2]. He managed to coalesce support from the party’s institutional left, securing endorsements from retiring Representative Schakowsky, Senator Elizabeth Warren, and the liberal pro-Israel organization J Street [1][2].

Sources

Daniel Biss Illinois primary