State Representative Charles Portwood of Ballwin has cut a deal with prosecutors on a drunk-driving charge that will let him keep his seat in the House. Portwood has pleaded guilty to a misdemeanor charge of trying to leave the scene of an accident. He originally was charged with leaving the scene, a felony. A felony conviction would have forced him to leave the House. The prosecutor says he dropped a drunk driving charge because of a mistake in the way Portwood’s blood-alcohol test was done. Portwood’s pickup truck went through a privacy fence, and crashed into a pool house. He denies being drunk. He’s been put on probation for a year, fined $500 and his insurance has paid $30,000 in restitution to the owners of the pool house.