The American Israel Public Affairs Committee's super PAC provided funding to two anonymous groups that spent more than $14 million to influence House Democratic primaries in Illinois on Tuesday, according to campaign finance records.

The spending represents a significant investment by the pro-Israel lobbying organization in Democratic primary contests, highlighting ongoing tensions within the Democratic Party over policy toward Israel. The funds were channeled through groups that were not initially required to disclose their funding sources.

AIPAC's United Democracy Project super PAC has been increasingly active in Democratic primaries, particularly targeting candidates who have been critical of U.S. support for Israel or have called for conditions on military aid. The organization has faced criticism from progressive Democrats who argue that outside groups should not be intervening in party primaries.

The Illinois primaries were among several contested House races where AIPAC-affiliated spending has played a role in recent election cycles. The organization has defended its activities as necessary to support candidates who back strong U.S.-Israel relations.

Campaign finance laws require super PACs to disclose their donors, but groups can sometimes delay reporting or use intermediary organizations to obscure the original source of funds. The full extent of AIPAC's influence in Tuesday's primaries may become clearer as additional financial disclosures are filed in coming weeks.