For decades, Washington treated support for Israel as something beyond debate. It was political scripture. Republicans defended it. Democrats defended it. Presidents came and went, wars came and went, thousands died, settlements expanded, Gaza burned, and the checks kept arriving. Questioning the arrangement was once political suicide. Now the walls are cracking. This week, more than half of House Democrats either voted to end U.S. aid to Israel or refused to oppose doing so. The amendment failed, but something far more important succeeded. The illusion collapsed. For years, American politicians insisted that criticism of Israeli government policy belonged only to "the fringe." Apparently the fringe has become half the Democratic caucus. History has an unusual sense of humor. The same establishment that spent years dismissing students, academics, humanitarian workers, doctors, journalists, and millions of protesters as naïve, radical, or antisemitic now finds itself strugglin...