Daniel Biss, Donna Miller, Melissa Bean win House primaries as Democrats fight over Israel and four Illinois open seats

Evanston Mayor Daniel Biss has won the contested Democratic primary in Illinois' 9th Congressional District, part of a split decision Tuesday night for progressives and moderates who fought furiously across four Chicago-area House districts over a number of issues, including Israel policy.

Evanston Mayor Daniel Biss has won the contested Democratic primary in Illinois' 9th Congressional District, part of a split decision Tuesday night for progressives and moderates who fought furiously across four Chicago-area House districts over a number of issues, including Israel policy.

Along with Biss, NBC News projects that state Rep. La Shawn Ford won the Democratic primary in the 7th District. Cook County commissioner Donna Miller and former Rep. Melissa Bean, who ran campaigns more in line with the party establishment and more moderate Democrats, won the Democratic primaries in the 2nd and the 8th districts, respectively.

Cook County Board of Commissioners member Donna Miller speaks in Oak Lawn in June.Antonio Perez / Chicago Tribune/Tribune News Service via Getty ImagesThe four races were roiled by tens of millions of dollars in outside spending, including by three anonymously funded groups that popped up in the final six weeks of the campaign and were able to get through the primary without disclosing the sources of their funding. The groups spent more than $16 million to boost Miller, Bean and a third candidate: state Sen. Laura Fine in the 9th District.

Biss and Ford, meanwhile, overcame millions of dollars in outside spending against them — Biss by one of the anonymous groups and Ford by the pro-Israel United Democracy Project, a super PAC aligned with the American Israel Public Affairs Committee that spent millions to boost his main opponent.

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