"Wealth by itself will not be a problem for her, but the means by which she acquired it could raise some questions," says Jack Pitney, a political scientist at Claremont McKenna College in Claremont, Calif.
Clinton's strength with lower-income voters comes in part from her husband's presidency, and memories of the economic prosperity of that eight-year period. When the Clintons were just starting out in politics, Bill could tout his humble origins. Hillary came from a more middle-class family, her father a successful small-business man. Now, the question is whether voters will look at the Clintons and believe they still know what it's like to face financial challenges.
On the campaign trail, both Obama and his wife, Michelle, talk about their own modest family backgrounds and how it hasn't been that long since they paid off their student loans.
But their days of financial struggle are clearly over. When the Obamas released their 2000 to 2006 tax returns last month, they presented a picture of a two-career couple that began the decade comfortably (earning $240,505 in 2000) and can now be called wealthy. In their best year, 2005, their combined income was $1.6 million, including $1.2 million in earnings for Senator Obama's bestselling books. In 2006, the couple made almost $1 million.