Steve Kornacki, chief data analyst for NBC News and NBC Sports, has been a household name — and an unintentional fashion icon — when it comes to election nights, particularly during the 2020 presidential election, when his round-the-clock analysis at the big board became must-see TV.

He is a regular on "Meet the Press" and "NBC Nightly News," while also bringing his signature data-driven approach to NBC Sports' coverage of the National Football League, March Madness, the Kentucky Derby and the Olympics.

He joined NY1's Errol Louis to discuss his career and the intricacies of working with polling data, including concerns over accuracy. He also weighed in on the mayoral race in New York City, the differences in polling data between national and local elections and how the word socialism means something different today than it did decades ago.