Gov. Palin and her husband, Todd, an oil-field worker and small-businessman, had a combined
adjusted gross income of $166,000 in 2007, up from $128,000 in 2006, the tax returns show.
Democratic nominee Sen. Barack Obama, and his wife, Michelle,
reported income of $4.2 million last year, according to tax returns released earlier this year. Their income included $3.9 million from book royalties.
Sen. Biden and his wife, Jill, reported $320,000 in adjusted gross income last year. Their tax returns, released earlier this year, were notable for how little they gave to charity: $995, or less than 1% of their income.
Palin Is Lowest Earner of the Candidates - WSJ.com
Biden and his wife made nearly double what the Palins made last year. Under Obama's definition, the Biden family would be considered rich. While Palin's household would be considered middle class.