Politics | national security adviser Trump Names New National Security Adviser It's hostage negotiator Robert O'Brien By Newser Editors and Wire Services Posted Sep 18, 2019 9:01 AM CDT Copied President Trump arrives at Los Angeles International Airport to attend a fundraiser, Tuesday, Sept. 17, 2019, in Los Angeles. (AP Photo/Evan Vucci) President Trump has named hostage negotiator Robert O'Brien to be his new national security adviser, reports the AP. Trump tweeted Wednesday that he has "worked long & hard" with O'Brien and that "he will do a great job!" Trump's announcement about O'Brien comes a week after he ousted John Bolton from the national security adviser's post, citing policy disagreements. Bolton was Trump's third national security adviser. Read These Next Doctor left her Alaskan cruise and never returned. At least 13 people are dead in Texas flooding. Kyiv was subjected to 7 hours of 'terror.' He was caught working for 4 startups at once. Report an error