On the campaign trail, Sarah Palin has complained of struggling to pay the bills and this week described herself as "an everyday, working-class American" who knows how it feels when the stock market takes a hit.

But the Palin family income reached comfortably into six figures in her 2007 declaration, capitalising on valuable salmon fishing rights and a series of property deals. Her governor's salary brought in $125,000 (£71,000), while her husband Todd earned almost $100,000 from his part-time job at BP, combined with income from commercial fishing. The couple appeared to be worth at least $1.2m, including a $500,000 lakefront home, a Piper float-plane and two holiday getaways.