If the Republican presidential nominee seems to have an extra spring in his step and twinkle in his smile as he campaigns with his running mate, Alaska Gov. Sarah Palin, at his side, it is understandable. Palin's star power has swelled the crowds at McCain's rallies to match that usually enjoyed by their Democratic opponent, Sen. Barack Obama, another beneficiary of a blockbuster convention speech. McCain's post-convention bump in the polls wiped out Obama's bump from the Democratic convention. Even more newsworthy for a Republican candidate, McCain even surged ahead of Obama among white women, a must-win demographic for Democrats...