John R. Bolton
O'Brien, who serves as special presidential envoy for hostage affairs, is set to replace John Bolton.
Questioning "mutual assured destruction," Charles Kupperman called nuclear conflict "in large part a physics problem."
"That's it," the New York lawmaker captioned a TV news chyron about President Donald Trump and North Korean dictator Kim Jong Un.
“Americans have to realize that warmongering and warmongers are not to their benefit,” the Iranian president said in televised remarks.
The MSNBC host said the president is probably wondering right now if Bolton will keep quiet.
The "Late Show" host breathes a sigh of relief over the president's latest move.
The secretary of state attempted to assure reporters he wasn't blindsided by the former national security adviser's abrupt firing.
Acting national security adviser Charles Kupperman was on the board of an anti-Muslim think tank that trafficked in conspiracy theories.
The national security adviser's hawkish stance has been frequently at odds with the president's own approach to military intervention.
He "found out the Taliban kill people" just before the anniversary of 9/11, one wag scoffed.