Richard Grenell, a loyal and outspoken Trump supporter, has been the US ambassador to Germany since 2018. He previously served as US spokesman at the United Nations in the George W. Bush administration, including under then-ambassador John Bolton.
The Florida man suspected of mailing at least 14 pipe bombs to some of US President Donald Trump's leading critics was in custody on federal charges on Saturday, in a case reflecting the rancor of one of the most toxic election campaigns in decades.