John Gilbert Winant was one of the rarest of figures in public life: a three-term Republican governor from New Hampshire whose leadership wasn’t calculated but instinctive; a public servant who treated humility as a strength, and a diplomat who put principle ahead of political convenience. Yet for all the steadiness he gave to others, he struggled to find a place...

Moral courage is a rare commodity, rarer still today. Those who stand up—frequently alone—to shine a light on corruption, deceit, and discrimination at the risk of their reputations and livelihoods are worthy of admiration. Republican representatives Liz Cheney and Adam Kinzinger, singer-songwriters Joni Mitchell and Neil Young, football coach Brian Flores—all have gone it alone in standing against reprehensible behavior,...