For years, Jewish Republicans often denied that the right had a serious problem with antisemitism, pointing instead to anti-Jewish bigotry on the left and celebrating President Trump's support for Israel. But now that problem is staring them directly in the face. Tensions over antisemitism in the party, free speech and Israel have burst to the forefront of G.O.P. politics, and show signs of becoming a fierce point of contention in 2026 primary races and beyond. Some Republicans are now finding themselves in the extraordinary position of clarifying what long seemed obvious: Nazis are evil. "It's something that we all should know, but the fact of the matter is, it had to be said," said Representative David Kustoff of Tennessee, explaining why he felt the need to denounce Nazis and antisemitism at a recent gathering of the Republican Jewish Coalition.