Chief Justice John Roberts rejected former Trump adviser Peter Navarro's bid to delay serving a four-month prison sentence for contempt of Congress. Navarro was convicted for refusing to comply with a subpoena from the Jan. 6 committee investigating the Capitol attack. Navarro argued he was protected by executive privilege but the judge ruled privilege was never formally invoked. His appeal argued his prosecution violated separation of powers but courts said arguments were forfeited. Records sought were often personal and couldn't implicate privilege, according to the Biden administration.