A wave of super PAC money is reshaping a low-profile Minnesota primary, a warning sign for progressives of how outside cash can quietly tilt Democratic races.

• Establishment Democrats and pro-Israel groups are spending millions to stop the left, including a new $15 million effort from the centrist group Third Way to discredit democratic socialism through 2028.
• In Minnesota's 2nd District race to replace Angie Craig, over $2 million has poured in for pro-Israel candidate Matt Klein in just the last week, much of it from the PAC "314 Action," which is tied to AIPAC.
• Progressive candidate Matt Little says the money is being used in a three-way race to prop up a second, late-turned-progressive rival (Kayla Berg) to split the left-leaning vote and pull support away from him.
• Little traces AIPAC-linked money moving through a chain of PACs — Democratic Majority for Israel, women's and pro-choice groups — making the funding hard to follow, then says he gets branded a conspiracy theorist for pointing it out.
• Michael Bloomberg's cash appears on multiple sides at once, and Little argues the flood of generic, emotionless attack ads is failing against old-fashioned door-knocking in a small state.

Outlook: The primary is Tuesday, and the result will test whether heavy outside spending can override a grassroots progressive campaign.