The 2016 presidential field has so far divided into two camps: the very wealthy, and the less so.

At the upper end of the spectrum are Republican longshot candidate Carly Fiorina, 60 years old, and Democratic frontrunner Hillary Clinton, 67. Mrs. Fiorina, the former chief executive of Hewlett-Packard, and her husband, Frank, have a net worth of $59 million, she reported earlier this month. Mrs. Clinton, together with her husband, former President Bill Clinton, has assets between $11.3 million and $52.7 million, she has reported.