Richest US presidential candidates in history

 Tom Steyer is a latecomer to the 2020 presidential race, having announced his candidacy in July.He has spent millions of his own fortune on environmental causes, and recently paid for ads on prime-time TV calling for President Trump to be impeached.Steyer ran hedge fund Farallon Capital For 26 years, but stepped aside from the position in 2012 to focus on environmental and political causes.

2020: Tom Steyer — finance — $1.6 billion