Mike Bloomberg's Offensive Campaign

The rich are different from you and me -- they can buy themselves instant presidential campaigns.

Former New York Mayor Mike Bloomberg has elbowed himself into the Democratic nomination race solely on the basis of his fortune.

His campaign is high-handed as only a billionaire many times over could even contemplate. He entered late, is skipping the early contests and hasn't participated in any of the debates to date (although that will change soon, thanks to the Democratic National Committee retrofitting its rules for Bloomberg).

It's a free country, and with more than $50 billion to his name,...