On the same day Republicans surrendered a symbolically significant seat in the Senate, the Sarah Palin wars erupted again inside the party. Leaks followed by trash-talking followed by recriminations. The latest Palin flare-up began in Vanity Fair with a lengthy article by Todd S. Purdum examining the Alaska governor's past and her potential future. The controversy migrated instantly to the Web and the blogs -- it was, in fact, made for the viral communication that dominates today's politics -- and became even more intense, nasty and personal. The Palin controversy highlights personal enmities and strategic disagreements among Republicans. The victory...