ABC News is reporting the casino company run by the principal financial backer of Newt Gingrich’s presidential bid, Sheldon Adelson, has been under criminal investigation for the last year by the Department of Justice and the Securities and Exchange Commission for alleged bribery of foreign officials. The probe centers on Andelson’s casino operations on the Chinese island of Macau. Adelson and his wife have so far given at least $10 million to the pro-Gingrich super PAC, Winning Our Future.