Madigan, who also lobbies on behalf of Dubai, serves with Sen. McCain on the board of the International Republican Institute, which seeks to advance freedom worldwide.
CIR and ABCNews.com examined records in the Justice Department's foreign agent registration database against a list of more than 2,000 presidential fundraisers identified by the Washington, D.C.-based advocacy group Public Citizen.
As for McCain's Republican rivals, former Massachusetts Gov. Mitt Romney counts one fundraiser who lobbies for Morocco. The review did not find any lobbyists for foreign countries among known fundraisers for former Arkansas Gov. Mike Huckabee.
Clinton's rival, Sen. Barack Obama, has a policy banning registered lobbyists from raising money for his campaign.
Will Evans is a reporter for the Center for Investigative Reporting.