A 8,000-person caravan of South and Central American migrants make their way towards the U.S.-Mexico border. On Wednesday, Biden Administration officials are in Mexico City meeting with Mexican President Andres Manuel Lopez Obrador. Secretary of State Antony Blinken and Homeland Security Secretary Alejandro Mayorkas are leading a U.S. delegation for the negotiations as they work towards addressing the "unprecedented irregular migration in the Western Hemisphere." NBC's Alice Barr reports from Washington. Source: NBCNC More local videos here: https://bit.ly/2Pa0d1l Subscribe to NEXT: http://bit.ly/2eP1GwI Stay connected: 9NEWS Website: http://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.