It has been widely covered already so there’s no need to rehash it too much other than to say this: what NBC has done and continues to do is bad for journalism and bad for the American people who rely on news channels to grasp what’s happening in our world.
This is nothing short of a political agenda being pushed with zero transparency or a willingness to report the news rather than manipulate it for their own goals. Fox News has done some manipulative things with the news. They all have. NBC is just much better at it and much more willing than other networks to warp the news to their liking. Check out the video from Hannity: