A new CNN poll shows a third of Democrats now call themselves democratic socialists, and the party's left wing is gaining real ground — good news for progressives, bad for the centrist establishment.

• The DSA-leaning base skews younger, less likely to have a college degree, earns under $100k, and is more fired up to vote than other Democrats.
• Establishment attacks are backfiring: trying to make left candidates disown streamer Hasan Piker over Israel only helped them, sinking centrist Mallory McMorrow and rocketing Abdul El-Sayed to a big lead in Michigan.
• Even Democrats who don't call themselves socialists largely agree with the left on health care, wealth taxes, ICE, and cutting off support for Israel — electability fears faded after Trump's win.
• Party chair Jamie Harrison warns the infighting could hand elections to Republicans, but the real defectors are centrists threatening to abandon "vote blue no matter who" over left nominees.

Outlook: Expect more centrist Democratic leaders to break from the party over Israel and left-wing nominees heading into the next elections.