Democrats are fighting over why establishment candidates keep losing to the left, and the answer points to voter anger at both the economy and Israel — bad news for the party's old guard.

• Ro Khanna says DSA candidates are winning because people are fed up with high gas and food prices and can't afford homes or jobs.
• Dan Goldman, who lost his New York primary by a wide margin, insists it was Israel and other issues, not the economy — even though he ran on economic policy.
• The likely truth is both: for many voters, backing AIPAC and Israel has become shorthand for corruption and serving donors instead of ordinary Americans.
• The idea is that if a politician works for a foreign country, voters assume he also works for corporate donors like drug companies — so they don't trust his economic promises either.
• Mainstream coverage is trying to reframe these wins as voters embracing fringe ideas like abolishing prisons, but those planks barely came up in the actual campaigns.

Outlook: Both the economy and Israel look set to keep driving Democratic voters toward insurgent left candidates and away from the establishment.