Donald Matthew Moore (born April 22, 1982) is a Republican political strategist who served as the 18th chairman of the South Carolina Republican Party from 2013 to 2017. For most of his two terms, he was the youngest state chairman in America's two major political parties. Moore has served as a commentator for Fox News, CNN, MSNBC, The Wall Street Journal, The Washington Post, and The New York Times. On June 12, 2014, he earned the national New York Times "Quotation of the Day" for describing the power of grassroots activists in the social media era.