The U.S. Senate investigated Charles Koch for his alleged role in funding so-called “issue ads” that violated campaign law by helping conservative Republican congressional candidates in 1996.Koch Industries has been the largest oil and gas industry contributor to electoral campaigns since the 2006 election cycle. During the 2008 elections, Koch Industries contributed over $1.8 million, 88% to Republican candidates.
Charles and his brother David were involved in a decades-long family dispute with their brothers, Bill and Fred, regarding a buy-out of company shares. Bill and Fred claimed that Charles and David shortchanged them by $340 million. The vicious lawsuits began in the early 1980s and continued for nearly two decades.
See also PolluterWatch profiles of Koch Industries, Charles Koch and David Koch.