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GOP-donation machine Sheldon Adelson's casino company is being investigated over its role in two high-profile money laundering cases, according to the Wall Street Journal. Investigators aren't looking at Adelson for any wrong doing, but his company, Las Vegas Sands, is being looked at over suspicious transfers made by two "whales" that could be considered money laundering.

Zhenli Ye Gon is Chinese-born Mexican businessman who owned a pharmaceutical company. Ye Gon was arrested in 2007 on suspicion of moving chemicals across the border with the intent of turning them into meth. Ye Gon was a regular customer at the Venetian, the Sands' prize casino in Vegas, and he bragged about playing $150,000 hands of baccarat there. He also alleged the casino gave him a Rolls Royce. Investigators think Ye Gon's use of Mexican currency-exchange firms to transfer $85 million into the U.S. should have been a red flag for the casino, and they should have alerted authorities. At the time, no one knew of Ye Gon's drug charges. The company alleges they thought he was legitimate. He's no stranger to money laundering scandals, though. Ye Gon's name also came up in a money laundering investigation involving HSBC.