Where AI, pro-Israel and other big-money groups spent millions, won and lost in Tuesday’s primaries

The primaries featured not only Zohran Mamdani’s influence but also some of the most aggressive outside spending by super PACs and interest groups this year.

The headlines from Tuesday’s primary elections centered on New York Mayor Zohran Mamdani’s proxy victories — but he wasn’t the only big power investing in races across four states. Just look at the campaign finance ledger.

Limited time: Save 25% on NBC News subscription

Get exclusive reporting, live Q&As and ad-free reading.

Just a moment.

We are getting your experience ready.