Economist Justin Wolfers summed up Donald Trump’s latest boasts about the economy as “just nonsense.”

“My kids don’t even lie that often,” the professor of economics at the University of Michigan lamented on MS NOW’s “The Weekend.”

“I just feel disappointment and a certain sadness at this point,” he added.

Wolfers called out Trump’s claim that the United States is “taking in trillions of dollars in tariff revenue,” and he argued it’s because the president doesn’t understand the difference between millions, billions and trillions. “If we were, we could afford his $2,000 tariff checks. We aren’t. So, therefore, we can’t,” he said.

The economist also clarified Trump’s stock market brags, acknowledging that U.S. stocks are up but “they’re up even more everywhere else.”

It’s also “quite striking just how bad” consumer confidence is right now, Wolfers added, noting how “consumers say that they’re feeling worse than they were during the Great Recession, than they were during the pandemic, than they were during the early ’80s recession.”

Trump has “fundamentally lost the battle of ideas” on the economy, and there’s a “deep question as to how long people are going to keep spending,” Wolfers argued, suggesting that sales figures from this year’s Black Friday may look “much grimmer” than previous ones.