Sure, Donald Trump paid off officials to look the other way, but it wasn’t just inaction that he bought. One of Trump’s biggest scores was directly paying a politician to give him tax breaks.

Republican presidential nominee Donald Trump gave at least $45,000 to the campaign of Alan Hevesi, a New York state comptroller who later went to prison for his role in a pay-to-play bribery scandal, according to a Huffington Post review of campaign finance records.

That contribution resulted in some very serious returns on the Trump side. Trump got a break so big, he bragged about it in one of the books he paid someone to write.

The city reduced the tax assessment for Trump’s newest building by 17 percent and awarded the building a special tax abatement. In exchange, Trump agreed to subsidize 200 units of affordable housing in the Bronx. The settlement saved Trump $97 million in taxes he didn’t have to pay, he later wrote in Trump: How To Get Rich.

A $97 million return on a $45,000 investment is pretty good in anyone’s book.

Not only was this $45,000 among the largest checks Trump ever cut to a politician—along with those dispatched to Pam Bondi and AG-on-the-way-to-governor Greg Abbott—there are some common features between the Hevesi payoff and those in Florida and Texas.