A public feud has broken out inside the Democratic Party over its leftist wing, with centrists like Bill Maher and James Carville threatening to quit if progressives gain ground.

• The real fight is over Israel — critics are using unpopular ideas like "abolish prisons" to smear the whole left, while lumping in popular ones like Medicare for All and cutting support for Israel.
• Maher and Carville warn they'll leave the party if figures like Hassan Piker and the DSA rise, framing the left as un-American radicals.
• The left pushes back that its core asks — health care, working police accountability, lower prices — are mainstream, and that most Democratic voters reject fringe positions anyway.
• The DSA is a small faction of a few members, not the party's leadership, making the "takeover" claim overblown.
• Underneath it all: many Democratic voters feel the party's wealthy leaders are out of touch on housing, jobs, and the cost of living.

Outlook: Expect the Israel question and the centrist-versus-left split to keep tearing at the Democratic Party heading into the next election cycle.