Sen. John McCain has recently stated that casino magnate Sheldon Adelson, who was bankrolling Gingrich’s super PAC during the primary, is contributing foreign money to Romney’s super PAC, because some of his money is earned overseas:

McCain said Adelson earns his money through a global casino empire, and “much of Mr. Adelson’s casino profits that go to him come from this casino in Macau. “Obviously, maybe in a roundabout way, foreign money is coming into an American campaign,” McCain said.

My question for Sen. McCain is what is the difference between Adelson and an American expat working overseas who earns his/her money from a foreign corporation? In his 2008 Presidential bid, McCain raised money from Americans overseas (Sources: ABC, Real Clear Politics); did those donations represent foreign money coming into an American campaign? If not, why not?

McCain made his comments on PBS’ Newshour; you can read them here.