The Congressional Budget Office report analyzes the distribution of family wealth in the United States from 1989 to 2013, highlighting a significant inequality where the top 10% held 76% of total wealth by 2013. The research indicates that while the wealth of the top half of families grew, the bottom half saw a decline, intensifying wealth disparity over the period. Factors such as changes in demographics and educational attainment contributed positively to overall family wealth, although significant differences remained across various groups.