Who is Robert O’Brien, Trump’s national security adviser pick?
By Laurin-Whitney Gottbrath
Bolton unloads on Trump's foreign policy behind closed doors
By Daniel Lippman
Trump realigns national security team with a low-profile adviser
By John Wagner & John Hudson
Robert O'Brien 'Looks the Part,' but Has Spent Little Time Playing It (Published 2019)
By Maggie Haberman, Michael Crowley & Peter Baker