Issa tops The Hill's 50 Wealthiest: Page 51 of 51


Science has been a moneymaker for Foster.

The Illinois Democrat's biggest asset is a promissory note, worth at least $5 million, from the sale of his interest in Electronic Theatre Controls Inc. With his brother, Foster founded the company, which makes theater lighting, when he was 19 years old.

Elected again in November to Congress after losing his 2010 reelection bid, Foster lists several savings and retirement plans among his assets, including an IRA valued at least $50,000.

Foster was a physicist at Fermi National Accelerator Laboratory and has been a big advocate for science on Capitol Hill.

— Kevin Bogardus