Trump has showed 'incredible restraint' after Iran provocations: Trump adviser White House national security adviser Robert O'Brien is interviewed on "This Week." ...

White House National Security Adviser Robert O’Brien denied that systemic racism is a problem in law enforcement agencies across the country during an interview on CNN Sunday morning.

Robert O'Brien directly contradicted intelligence official findings. White House national security adviser Robert O'Brien is denying new U.S. intelligence reports that Russian actors are ...

Washington — White House national security adviser Robert O'Brien said Sunday that a transfer of power from President Trump to Vice President Mike Pence is not "on the table right now" as Mr ...

LOS ANGELES — President Trump on Wednesday announced he intends to name the administration’s envoy for hostage negotiations, Robert O’Brien, as his next national security adviser.&#8221… ...

Robert O'Brien "has been self-isolating and working from a secure location off site," the White House said President Donald Trump's national security adviser, Robert O'Brien, has tested positive ...

O'Brien steps into the role as Trump's fourth national security adviser and will take on several global disputes, including rising tensions with Iran, an escalating trade war with China and ...

O’Brien, President Trump’s fourth national security adviser, has been out of the office since late last week, a person familiar with his situation told Bloomberg News.

President Trump and new national security advisor Robert O’Brien arrive on Marine One to talk with reporters before boarding Air Force One at Los Angeles International Airport on Wednesday.

WASHINGTON — President Donald Trump’s national security adviser, Robert O’Brien, has tested positive for the coronavirus. O’Brien, 54, has mild symptoms and has been self-isolating and ...