Penny Pritzker, the billionaire heiress who oversaw Barack Obama’s record-breaking fund-raising efforts, has taken herself out of the mix for U.S. Commerce Secretary.

To a degree unlike any other city in America, Chicago is identified with its black elite. Locals joke that you can find more black millionaires per square foot at the Chicago Urban League’s annual dinner than you can anywhere in the world.

With Barack Obama sewing up the Democratic nominee for president, one of the hottest games in Chicago is guessing who might accompany him to Washington.