Measuring Wealth of the '08 Candidates

Details: Clinton continues to receive royalties for her autobiography, "Living History," for which she received an $8 million advance from Simon & Schuster. Clinton and her husband, former president Bill Clinton, left office in debt, but both have written bestselling biographies. Former president Clinton has collected nearly $40 million in speaking fees since leaving office.

Former New York mayorRudolph Giuliani(R)

Net worth: not available

Details: Giuliani has overseen a business empire consisting of an investment bank, law practice and consulting firm. He has delivered speeches for up to $100,000 apiece, and in 2002 alone collected over $8 million. Giuliani Partners has advised major U.S. companies on physical security and brand security related transactions. His investment banking arm, Giuliani Capital Advisors, reported revenues of $47.8 million in 2005, but Giuliani recently announced that firm is being sold to an Australian company for an undisclosed sum. Giuliani wrote a bestselling book, "Leadership."

Sen.Barack Obama(D-Ill.)

Net worth: $1-$2.5 million*

Details: In January 2005, Obama agreed to a $1.9 million advance from Random House for two non-ficton books and a children's book, of which $200,000 is being donated to charity. One of those books -- "The Audacity of Hope" -- has been a huge best seller since being released in October. He owns a home worth at least $1.6 million in Chicago.

*His wealth is likely to have increased significantly because of the huge success of "The Audacity of Hope"

Former Massachusetts governorMitt Romney(R )

Net worth: not available

Details: Romney was the founder and head of Bain Capital, a private equity firm. Analysts who track executive compensation say his compensation over 20 years was at least $500 million, as noted in The New York Times in an article about his contributions to conservative organizations. Running for governor in 2002, he spent $6 million of his money over eight months, the most ever spent on a Massachussetts governor's race.

Former senatorJohn Edwards(D-N.C.)