Back formation of "confidence man". One who gains the trust, or "confidence", of his victims (often called marks) in order to manipulate, steal from, or otherwise predate upon them. (U.S. slang, late 1800s)
The modern, George Bush Jr. era incarnation of the neo-"conservatives " , interested more in power and empire than the commonwealth of their governed. Those who fiddle with the future of America while the Republic burns. (a compound derived from the use of Nero in the place of neo- + conservative ) related: neocon, neroeconomicon, neocon man.
Don't vote for Giuliani, he's a nero-conservative!