President Donald Trump announced that he was replacing his national security adviser, Lt. Gen. H.R. McMaster, with the hawkish John Bolton.
Reports about friction between National Security Adviser McMaster and President Trump have fueled widespread speculation about McMaster's departure in 2018.
Donald Trump warns that time is running out for a peaceful solution between Kim Jong Un's regime and the United States and its allies.
Two key factors to watch will be how much autonomy the president gives McMaster, and how the general gets along with Steve Bannon, Trump’s chief strategist.
President Donald Trump has tapped Army Lt. Gen. H.R. McMaster, a prominent military strategist known as a creative thinker, as his new national security adviser, replacing the ousted Michael Flynn.