Announcement Drying News Today

United nations ambassador taking over as donald trumps national security advisor. democrats arent happy. robert gray joins us with the latest reaction on this story. >> reporter: the latest advisor shuffle coming by tweet. the president naming former united nations ambassador john bolton to the post effective next month and thinking general mcmaster for his service. the two men clashed and there was speculation for months that mcmaster would be fired. and said he will resign, the announcement dr...