During a major election year, interest surges in discovering the sources of campaign funds for influential members of Congress and presidential candidates. This study traces the contributors from the health and insurance industries during the 1990 campaign and presents preliminary figures for the 1992 campaign. Health interests contributed $16.3 million to congressional candidates in 1990, many of whom sit on influential committees and subcommittees. The insurance industry gave $10.9 million that same year. In either case, more than half of the funds came from political action committees (PACs); the rest, from individuals. As of 30 June 1992 health industry PACs had given more than $8.3 million to candidates for federal office in the 1992 campaign; insurance PACs had contributed $6.4 million.