Biden says U.S. would 'respond' to Russia if Putin uses chemical or biological weapons

Biden says U.S. would 'respond' to Russia if Putin uses chemical or biological weapons This is a developing news story. Please check back for updates: https://www.cnbc.com/2022/03/24/biden-says-us-would-respond-to-russia-if-putin-uses-chemical-or-biological-weapons.html Follow @CNBCnow for breaking news and real-time market updates Unsubscribe Manage Newsletters Terms of Service Join the CNBC Panel   Digital Products Feedback Privacy Policy CNBC Events   © 2022 CNBC LLC. All rights reserved. A property of NBCUniversal. 900 Sylvan Avenue, Englewood Cliffs, NJ 07632 Data is a real-time snapshot *Data is delayed at least 15 minutes. Global Business and Financial News, Stock Quotes and Market Data and Analysis. Data also provided by THOMSON REUTERS