Prosecutors have identified business partners of Paul Manafort as organized crime members and this has garnered the attention of Special Council Robert Mueller. The specific deal refers to the acquisition of The Drake Hotel in New York City. Other money laundering schemes are described further in the article

Manafort is so dirty. Trump will rue the day he ever got involved with this sleaze bag. Although by now he has never heard of him before 

Paul Manafort partnered on an $850 million New York real estate deal with an ally of Vladimir Putin and a Ukrainian moneyman whom the Justice Department recently described as an “organized crime member.”

Two former federal prosecutors told The Daily Beast that the hotel deal was likely to be an item of focus for Special Counsel Robert Mueller’s inquiry into ties between Trump associates and the Kremlin.

Some White House officials...feel Manafort may have made President Trump more legally vulnerable through his decades of business deals with foreign governments and shady Eastern European power brokers. Those deals, these White House aides suspect, led federal investigators down a money trail that threatens to plunge the Trump White House further into legal jeopardy.

Asked whether any Manafort deals seemed particularly troubling in retrospect, a senior administration official replied, “You mean like this one?” and appended a link to a 2016 story on Manafort’s alleged attempts to launder a Ukrainian oil and gas billionaire’s ill-gotten fortune through New York real estate—including the Drake.

www.thedailybeast.com/...