Andrea Mitchell Reports 09/23/16

John Kirby: ‘Russia needs to prove that they’re serious’

More airstrikes hit Aleppo targeting centers of the award winning White Helmets civilian defense brigade. This comes as the leaders of the White Helmets meet with John Kerry at the United Nations. State Department spokesman, John Kirby, joins NBC’s Andrea Mitchell to talk about this and John Kerry’s frustration over the recent airstrikes. ... more Duration: {{video.duration.momentjs}}