Fuller and other conservatives whose voting decisions are guided by their Christian faith find themselves dismayed and adrift now that Trump has wrested control of the Republican Party. It is a sentiment that reaches from the small, aluminum-sided church with a large white cross on its front that Fuller and his wife built on the Nebraska plains to the highest levels of American religious life. Even progressive Christians — evangelicals and Catholics, among others — who don’t necessarily vote Republican are alarmed that Trump is attracting many voters who call themselves religious. A coalition of nearly 60 Christian leaders — many progressive and some conservative — published an open letter last week asking voters of faith to reject Trump and his “vulgar racial and religious demagoguery,” warning that the nation faces a “moral threat” from the candidate.