Stephan Joseph Kornacki Jr. is an American political journalist, writer, and television presenter. Kornacki is a national political correspondent for NBC News. He has written articles for Salon, The New York Observer, The Wall Street Journal, The New York Times, New York Daily News, New York Post, The Boston Globe, and The Daily Beast. Kornacki is the multimedia anchor and data analyst for much of MSNBC's The Place for Politics campaign coverage, which airs during Election Day in the United States since 2016.

MSNBC is an American news-based television channel and website headquartered in New York City. It is owned by NBCUniversal — a subsidiary of Comcast — and provides news coverage and political commentary. The network produces live broadcasts for its channel from studios at 30 Rockefeller Plaza in Manhattan, New York City, and aggregates its coverage and commentary on its website, msnbc.com.