'The guardrails are gone': Experts horrified as Trump hands top intelligence agency to 'rude Twitter troll'
Richard Grenell, U.S. Ambassador to Germany, delivers remarks on June 15, 2018, in Kiel, Germany, for Kiel Week. (U.S. Navy photo by Mass Communication Specialist 1st Class Justin Stumberg/Released)

Following President Donald Trump's decision to appoint U.S. Ambassador to Germany and far-right political loyalist Richard Grenell as acting Director of National Intelligence, experts expressed their horror at yet another erosion of federal institutions in favor of the president's cult of personality: