Stefanik’s shift reflects a broader dilemma Republicans across the country are now facing as they’re forced to confront a damaging situation: whether to denounce or deflect in their public messaging in response to a trove of private discussions Democrats say is proof of the GOP’s long-dismissed problem with white supremacy. At the state and local level, Republicans are largely following a different track — even if it means bitter pushback from an online faction of right-wing youth who appear ascendant. Vermont’s Republican governor and the state’s GOP House and Senate conferences acted in lockstep to condemn the messages and successfully...