He is the brilliant young black man as American dream. No consultant, no matter how opportunistic and hungry, will think it easy--or professionally desirable--to take him down in a low manner. If anything, they've learned from the Clintons in South Carolina what that gets you. (I add that yes, there are always freelance mental cases, who exist on both sides and are empowered by modern technology. They'll make their YouTubes. But the mad are ever with us, and this year their work will likely stay subterranean.)

Mrs. Clinton would be easier for Republicans. With her cavalcade of scandals, they'd be delighted to go at her. They'd get medals for it. Consultants would get rich on it.

The Democrats have it exactly wrong. Hillary is the easier candidate, Mr. Obama the tougher. Hillary brings negative; it's fair to hit her back with negative. Mr. Obama brings hope, and speaks of a better way. He's not Bambi, he's bulletproof.