He started a small bank which was really a front for laundering slush fund money, then it got investigated and he disentangled himself.
He then took over another bank which was used as a front for union slush funds, was investigated and then went bankrupt.
Then he put money in a telecom firm prior to the bubble, which went bankrupt and was investigated by the SEC.
Then he got involved in a "green" company which took lots of government funds and went bankrupt.
If he qualifies as a businessman, who doesn't?
His record in the “business” world is only slightly worse than Donald Trump’s, lol. The Donald just kept more money.