Court papers filed by the Justice Department allege that a member of the Oath Keepers coordinated with the Proud Boys and a far-right, self-styled militia to form an "alliance" on Jan. 6.
"This case will not be tried in the media," U.S. District Court Judge Amit Mehta said Tuesday, referring to two recent stories that he said could affect the defendants' right to a fair trial.
An appeals court ruled last summer that the original trial judge did not secure an impartial jury for Dzhokhar Tsarnaev. The U.S. has asked the Supreme Court to review the decision.
They were indicted over allegedly conspiring to obstruct Congress' certification of the Electoral College, including in discussions on encrypted messaging apps.
"Too many of our laws were written during a time of open racism and discrimination, and they still bear the traces of inequity," Gov. Ralph Northam said on Tuesday.