What happened to the Sen. John McCain we once knew? What happened to the jovial, optimistic war hero who promised a civil and elevating presidential campaign? Where's that campaign that would be based on real issues, not brainless emotions or partisan cheap shots? Ah, those were the days. That was long before the economy tanked and McCain's poll numbers went into a slide behind Sen. Barack Obama's like the Dow Jones industrial average. These are the days in which McCain's attacks against the Democratic nominee have grown sharper and angrier. He unleashed his running mate, Alaska Gov. Sarah Palin, like...