In the weeks following the firing of former FBI director James Comey, Deputy Attorney General Rod Rosenstein expressed to colleagues his frustration with being "used" by the White House to justify the termination.
Four sources who spoke with the New York Times said that in the aftermath of Comey's firing, which was rationalized by a letter penned by Rosenstein that claimed he was ousted for his treatment of the Hillary Clinton email server case, the deputy AG's moods were erratic.
One person in touch with Rosenstein at the time said he sounded "frantic, nervous, upset and emotionally dis-regulated [SIC]." Another told the Times that the Justice Department official was “shaken,” “unsteady” and “overwhelmed.”
You can read the entire account of the deputy AG's post-Comey firing outlook via the Times.