Richest US presidential candidates in history

 Mitt Romney started his career as a consultant with Bain & Company, and built his fortune as a founding member of its investment arm, Bain Capital.Under his stewardship, Bain Capital became one of the world’s most successful private equity firms. His declared wealth when he unsuccessfully ran for the presidency in 2012 against Barack Obama was $250 million.

2012: Mitt Romney — private equity — $250 million