Election Outcome

Daniel Biss, a Democratic candidate, secured a primary win on Tuesday in Illinois's Ninth Congressional District.

Campaign Strategy

Biss had anticipated the involvement of the American Israel Public Affairs Committee (AIPAC) in his campaign.

He describes himself as a supporter of Israel and a critic of its current government.

An internal campaign survey, shared with The New York Times, provided crucial insights. It indicated that 51 percent of Democratic voters in the district viewed AIPAC unfavorably, while 17 percent viewed it favorably. This survey data significantly influenced Biss's campaign strategy.

He made AIPAC, and the financial contributions it made through super PACs, a central element of his campaign.

Biss, the mayor of Evanston, Illinois, stated after his victory that efforts were made to inform voters about the situation.