London Crowds Count Down To Official Brexit From European Union | NBC News (Live Stream)

Watch live coverage as crowds gather in London’s Parliament Square to count down to the United Kingdom’s official exit from the European Union. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and