A public feud between Ben Shapiro and Tucker Carlson shows the right splitting apart over Israel and populism — bad for Shapiro, who is losing the fight and the audience.

• Shapiro attacked Carlson's network for defending Maine Senate candidate Graham Platner, who fell over old tattoos, rape allegations, and past comments.
• Carlson's side fired back by pointing to Shapiro's defense of Israel's war in Gaza, and the two traded insults from there.
• The real divide is Israel: Shapiro cuts off anyone who criticizes it, while Carlson backs Platner as an anti-war populist outsider.
• Left and right are increasingly ignoring the old political spectrum and rallying around anyone seen as anti-establishment.
• In raw audience terms it isn't close — Carlson has one of the biggest shows in America, while Shapiro's network is shrinking fast.

Outlook: Expect the pro-Israel wing of right-wing media to keep losing ground to Carlson-style populists as the feud deepens.