Socialists have built out a disciplined political infrastructure that appears poised to continue its gradual capture of the Democratic Party. To beat back the Islamist-sympathizing, Communist-adjacent Left, opponents should begin thinking seriously about how to build, mobilize, and sustain an anti-socialist coalition of Democratic, independent, and Republican normies united around an affirmative, optimistic agenda centered on public safety, economic growth, housing production, functional public services, civic pluralism, upward mobility, and institutional competence. Drawing on insights from @reihan, @baseballot, @PatrickRuffini, and @continetti, my @ManhattanInst colleague @Sean_Speer and I wrote for @CityJournal about why the far Left is ascending in cobalt blue strongholds, how that could create problems for Democrats nationally, and what non-socialists should do in response.