Adelson's casino, Las Vegas Sands Corp., has been the target of federal investigations, in part over allegations that the company bribed officials in expanding its Chinese business. A spokesman declined to publicly discuss his boss' support for Gingrich. Adelson wrote last month in an email to The Washington Post: "My motivation for helping Newt is simple and should not be mistaken for anything other than the fact that my wife, Miriam, and I hold our friendship with him very dear and are doing what we can as private citizens to support his candidacy."
The head of a New York-based hedge fund, Singer of Renaissance Technologies, gave the Romney super PAC $1 million. Renaissance lobbied Congress last year on proposals that would aid hedge funds in efforts to collect on debts purchased from Argentina and other foreign governments. Renaissance is one of several international hedge funds that have bought debt in distressed and Third World nations at low prices and sometimes have used lawsuits to force the countries to pay restitution.
A spokesman, Peter Truell, declined to discuss Singer's support for Romney but Renaissance officials have said that buying sovereign debt is only one aspect of the company's business.
Singer has also been outspoken in his criticism of some aspects of the massive overhaul of banking and trading regulations brought by the Dodd-Frank Act and other legislation since the recession. Last August, Romney told a New Hampshire audience that he favored repealing the Dodd-Frank law.
Another executive, William Koch, also gave $1 million to the Romney super PAC from his personal funds and corporate accounts. Koch runs Oxbow Carbon LLC, a fossil fuels processor and mining company that wants changes to laws and regulations on mining, safety issues and climate change. Unlike his brothers, Charles and David Koch, who are long-time supporters of conservative causes, Bill Koch has funded both GOP and Democratic candidates in the past.
"Despite the political statements, this administration has done nothing to help the coal industry, and we feel their energy policy is debatable," said Brad Goldstein, an Oxbow spokesman.
Oxbow also pushed for approval of the Central Rockies Land Exchange, a proposed swap of land tracts in Colorado and Utah to enlarge Koch's 4,500-acre Bear Ranch. The proposed deal with the federal government would allow Koch to acquire several adjacent parcels of federal land in exchange for turning other tracts over to the U.S. The proposal, which requires congressional approval, has brought some local opposition but is under consideration.
AP Business Writer Daniel Wagner contributed to this report.
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