While they insist that strengthening labor unions or protecting homeowners from foreclosures will alleviate the hardships of the poor, the latest data from the U.S. Bureau of the Census remind us that the breakdown of the traditional two-parent, married family is a far greater contributor to poverty in America than many of the supposed shortcomings of our economy. It’s hard to imagine that America will make much more headway on reducing persistent poverty until it halts this long-term trend.

The Census Bureau’s study on the living arrangements of American children appeared in mid-February. The data show that the number of children now living in two-parent families has dipped just below the 70 percent mark for the first time since the Census began collecting data on family formation nearly 130 years ago.

Researchers estimate that the entire rise in poverty in America since the late 1970s can be attributed to the decline of families headed by two married parents.