Barack Obama: "The D.C. school system is in terrible shape, and it has been for a very long time. And we've got a wonderful new superintendent there who's working very hard with the young mayor there to try?" John McCain: "Who supports vouchers." Barack Obama: "Actually, supports charters." John McCain: "She supports vouchers, also."

John McCain and Barack Obama argue about what the D.C. superintendent wants with the school system.