From the Fox News Story:
"Special Counsel Robert Mueller’s prosecutors were lectured by a federal judge Wednesday morning for the language they’ve used in the courtroom, as the trial of former Trump campaign chairman Paul Manafort entered its second day.





U.S. District Judge T.S. Ellis III specifically told prosecutors to stop using the word “oligarch” to describe wealthy Ukrainians, whose dealings with Manafort are at the heart of the fraud charges he faces in northern Virginia federal court.
The judge said the term has a “pejorative” meaning and is not relevant in this case. Further, he cautioned that using it could suggest Manafort is associated with bad people – and guilty by association.
“It’s not the American way,” the judge said. He noted that wealthy donors like George Soros or the Koch brothers also could be considered oligarchs

Words have consequences and the use of pejorative words by the prosecution, as the judge stated, to cause "Guilt by Association" . This is something Mueller's team excels at and will use at every opportunity. Judge Ellis was correct in admonishing them about it.