The American Israel Public Affairs Committee’s super PAC seeded two anonymous groups that spent more than $14 million to influence pivotal House Democratic primaries in Illinois on Tuesday — marking a new salvo in the battle over policy on Israel within the Democratic Party.

United Democracy Project, a super PAC aligned with AIPAC that receives tens of millions of dollars from the group, openly spent another $5 million to boost Chicago Treasurer Melissa Conyears-Ervin in her unsuccessful campaign for the state’s 7th Congressional District. But its involvement in the two other groups — Elect Chicago Women and Affordable Chicago Now! — had not been officially confirmed until Friday, when newly filed federal fundraising reports showed that UDP contributed $5.3 million of the $14.1 million the groups raised.

Donors who had previously contributed to UDP gave the groups millions more.

Altogether, the three super PACs accounted for 60% of all of the outside spending in Illinois House primaries this year.…