YOU HEAR THE VOICE FIRST Bob Jump's website lists him as the "secret voiceover talent" for the "Both Ways Barack" attack ad, paid for by 527 group Let Freedom Ring When Marvin Bush, the youngest son of George Herbert Walker and Barbara Bush, celebrated his 50th birthday in 2006, party planners commissioned a short "mockumentary" to entertain guests in the White House ballroom. Here was Marvin in college; there was Marvin in Texas! A prominent basso voice narrated each moment from the little Bush's life. Seated near the celebrant's mother was Rick Reed, who, when not making Bush home movies,...