Politifact: "Yes, Donald Trump has been linked to the mob." [View all]
Danny Leung, mentioned below, is just one of Trump's many mob-linked associates, and he was a top manager at Trump's Taj Mahal -- before it went bankrupt.
I suggest you read the whole article. It's full of interesting connections.
http://www.politifact.com/truth-o-meter/statements/2016/mar/02/ted-cruz/yes-donald-trump-has-been-linked-mob/
"You had contractors that were supposedly mob-oriented all over Atlantic City," Trump said when the Wall Street Journal asked him about it, adding that "every single casino company used the same companies, just I hope you will say that."
A few years later, Trumps organized crime connections extended overseas. In 1992, a Senate subcommittee named Danny Leung, who was then the vice president for foreign marketing at Trump Taj Mahal, as an associate of the Hong Kong-based organized crime group 14K Triad.
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(The Trump Taj Mahal declared bankruptcy in 1991, and his other Atlantic City properties folded a decade later.)
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Our ruling
Cruz said, "There have been multiple media reports about Donald's business dealings with the mob, with the mafia."
While its important to note that these connections were not atypical in the real estate and casino businesses in the 1980s, Cruzs statement is accurate. Media reports have linked Trump to mafia bosses and mob-connected business associates for decades.
We rate the claim True.