Every Democrat running for President wants to raise taxes on "the rich," but they will have to do something miraculous to outtax President Bush. Based on the latest available tax data, no Administration in modern history has done more to pry tax revenue from the wealthy.

Last week the Congressional Budget Office joined the IRS in releasing tax numbers for 2005, and part of the news is that the richest 1% paid about 39% of all income taxes that year. The richest 5% paid a tad less than 60%, and the richest 10% paid 70%. These...