U.S. Ambassador to Germany Richard Grenell plans to step down from his post. Grenell on Sunday (May 24) in a tweet confirmed a German media report that says he will formally leave the ambassadorship in a "few weeks." True https://t.co/5kS0YO4chJ— Richard Grenell (@RichardGrenell) May 24, 2020 Fox News on Sunday reported Grenell in March told the White House he planned to step down as ambassador once his tenure as acting director of national intelligence came to an end.