ViewpointsOpinionFrom Radical Leftist to Conservative Activist: Remembering David HorowitzSavePrintDavid Horowitz speaking at CPAC in Washington, D.C., on Feb. 12, 2011. Gage Skidmore, CC BY-SA 3.0, via Wikimedia CommonsJacob Adams5/10/2025|Updated: 5/13/20250:00X 1CommentaryDavid Horowitz, the radical leftist-turned-conservative activist and author, died Tuesday at the age of 86.Share this articleLeave a commentJacob AdamsAuthorJacob Adams is a journalism fellow at The Daily Signal.