After covering President Donald Trump for years, biographer and Pulitzer Prize-winner David Cay Johnston chuckled at the idea he told supporters he’s worth over $10 billion.

In a speech to supporters, Trump attacked the New York Times expose revealing the ways in which the Trump family managed to skirt tax laws and criminal prosecution along with it.

Johnston explained that Trump has already been charged twice with tax fraud and he lost both cases, so he probably shouldn’t tempt fate again. While the statute of limitations has long since passed on criminal charges, the state of New York along with New York City’s municipality will likely seek the money from Trump.

“Trump had two trials for civil tax fraud over his 1984 tax return, and he lost both and was heavily penalized by one judge and the other one for a technical reason didn’t penalize him,” Johnston said. “Just made him pay the taxes. So, I fully expect that the state of New York and the city of New York are going to go after the trumps, not just Donald, but his sister who is a federal judge.”

“Had this been known and spotted at the time, it would have justified criminal prosecution,” he later explained. “The problem is that, well, automobile records are electronic, so if you give a car to a child or transfer it at a price that isn’t proper, they’ll send you a tax bill. Real estate records are not. And so real estate cheating is so lowest cheating rate in the United States is in Ohio, and it’s 85 percent.”

The only way the federal government would go after Trump is through his own Justice Department. It’s hard to imagine under Jeff Sessions unless the Attorney General decides he wants to go out in a blaze of glory after Trump destroyed his career.

Johnston also said he doesn’t think that Trump’s tax plan had anything to do with scoring big for him, but rather, it was the Republican Party giving a break to the top one percent of Americans making over $2 million each year.

When it comes to Trump’s wealth, Johnston was confused how Trump could tell his supporters he was worth over $10 billion when his financial disclosure form only showed he was worth $1.4 billion.

“Where did the other $9 billion go?” Johnston wondered.

Watch the epic Trump trolling below: