Investment banker who ran against Barack Obama in the 2004 Illinois Senate race but dropped out after his divorce records were disclosed to the public.
He earned a substantial fortune as a partner at Goldman Sachs.
He supported reforming the way lawsuits are conducted and limiting payouts for medical malpractice.
His former wife was popular Star Trek actress Jeri Ryan.
Records of his custody fight with Jeri Ryan revealed some very unflattering things about him, and caused him to drop out of the Illinois Senate race.