"Census Bureau data show median family income -- half of families have income greater than the median, half have less -- fell 3.6 percent from 2000 through 2004," reported the Journal. "Incomes for the poorest families fell even further. The only group to gain was the family at the 95th percentile -- that is, richer than 95 percent of all families."

"Mr. Snow's case relies on averages, which can be skewed by big gains among the wealthiest," added the Journal. "Other data suggest the typical family has seen little advance in income or net worth since Mr. Bush took office."