Democratic socialists won big in New York's primaries, a setback for establishment Democrats and a target for Republican attacks calling it a "third world takeover."

• DSA-backed candidates swept several races, knocking out incumbents including Dan Goldman's allies and party heavyweights.
• The wins are fueled by anger over high living costs — most Latino and Black New Yorkers say they can't afford the city — and frustration with Democrats who promise but don't deliver.
• Trump called the winners "communists" while still praising Mayor Mamdani personally; his own party also went undefeated in its primaries.
• Stephen Miller, Matt Walsh, and Fox's Jesse Watters slammed the wins as immigrants and non-English speakers "taking over," which DSA dismissed as racist and out of touch.
• DSA membership jumped from 5,900 to near 15,000, and the group grew fastest among Latino and Black voters in the Bronx and upper Manhattan, cutting against claims it's only white activists.

Outlook: If Democrats retake the House, this socialist bloc could withhold votes from Hakeem Jeffries for speaker to demand big money be pushed out of party primaries.