William Lawrence, the Democratic nominee for a competitive House seat in Michigan, has called for a "world without borders" and to "redistribute all the land and all the money" to make up for America's "evil deeds." The former Democratic Socialist—who left the party this summer—made the comments less than two years ago. He is now downplaying those and other extremist comments as just "thinking out loud on the internet." Lawrence, a cofounder of the confrontational environmentalist group the Sunrise Movement, which has called for a "climate revolution," embraced the far-left positions on redistribution and open borders in an Oct. 22,...