Her money is on Obama. His? Clinton.

The Chicago Tribune reports:

As sister and brother, Penny Pritzker and Jay Robert "J.B." Pritzker have fought over everything from toys to how to divide a family fortune worth billions.

Now they are going head-to-head in politics, with the Democratic presidential nomination as their battleground. One is leading the fundraising for Sen. Barack Obama, while the other has a new alliance with Sen. Hillary Rodham Clinton.

In an interview Sunday, J.B. Pritzker said he would become the national chairman of Citizens for Hillary, a new campaign initiative that will be charged with grass-roots outreach, fundraising and policy matters.

Until now, the younger Pritzker had stood on the sidelines of the presidential campaign, not drawing attention from his older sister, who is Obama's national finance chairwoman.

The development comes as the New York senator is set to arrive in Chicago on Monday for her first fundraising event here since the start of her presidential bid. The trip is her second visit to the city in two weeks.

The competition over members of Chicago's wealthiest family -- heirs to the Hyatt hotel empire -- underscores the intensity of the presidential money race, with Clinton, Obama and the other candidates waging war in each of the nation's top money centers and on the Internet.

The Democrats sure are the party of the "little guy"? Anyways,for more on the Pritzker family: try this book,or this book.