With the fifth anniversary of the 9/11 attacks approaching, I thought it would be a good idea to check up on Rudy Giuliani. He is the last remaining political action figure from that tragedy, having left office at the top of his game, before anything like the Iraq war could tarnish him. After years of private-sector buck-raking, the mayor is back in campaign mode, traveling across the country to help Republican candidates and thinking about running for president. But is he ready for the brutality of a presidential race? This would be the week for him to practice savaging Democrats....