The code of conduct for federal judges does not appear to apply to Mr. Bove, who has yet to be sworn in. But his continued presence at the department has raised eyebrows.
It is not clear what country intercepted Mr. Bolton’s private emails, but the investigation into President Trump’s former national security adviser picked up momentum under the Biden administration.
It was a sharp rebuke to the prosecutors who were assigned to bring charges against those arrested after President Trump’s deployment of National Guard troops and federal agents to Washington.
It is the latest effort by President Trump and his allies to impugn the Russia investigation, which the president sees as having been a partisan witch hunt.
The premise of the new inquiry is that classified documents related to the Russia investigation were mishandled at F.B.I. headquarters in downtown Washington, where the director and his senior aides work.