Former Trump adviser Peter Navarro, who is facing contempt of Congress charges, claimed in court that he is at a disadvantage because he doesn’t have a lawyer. He was arrested at the airport on June 3 after he failed to comply with the House select committee investigating last year’s January 6 Capitol attack. Last week, he announced that he was served with a subpoena, ordering him to appear before a federal grand jury and hand over communications records relating to the Capitol riots. Navarro said that he won’t be hiring a lawyer because it would cost too much. “This is going to cost a half a …