If people thought Marco Rubio was not going to fight Donald Trump tonight, they were mistaken. In fact, Rubio brought up Trump University, a real sore spot with Trump. Trump is facing several lawsuits, one of which is a fraud case where he will be testifying. He claims he could have settled but didn’t on “principle.” If you believe that, I have beachfront property in Kansas to sell you.

Here is a short exchange where Rubio mentions Trump University. Watch as Trump’s skin practically boils when he addresses it.

Oof.

National Review has a detailed rundown of Trump’s scam and it’s pretty brutal:

What did the New Jersey couple get for shelling out more than $20,000 to a business bearing the famous Trump name? An instructor took them on a field trip to see dilapidated homes in rough Philadelphia neighborhoods, never bothering to explain how to reliably find properties to sell for a profit.

“We realized that Trump was not teaching us how to find these needles in a haystack,” Richard Hewson’s affidavit says. “We concluded that we had paid over $20,000 for nothing, based on our belief in Donald Trump and the promises made at the [organization’s] free seminar and three-day workshop.”

“We never tried to get our money back because at that point we thought the whole thing was a scam and that we would not be able to fight Donald Trump,” Hewson wrote.

Now Trump is fighting more than a dozen other candidates for the Republican presidential nomination, making his pitch on his business record and the respect it’s garnered him from millions of voters. But will his image as a peerless, productive entrepreneur suffer because of allegations that one of his businesses — one that promised to help ordinary Americans achieve success like his — amounted to a scam?

The Hewsons are not alone: A class-action lawsuit in California and an ongoing civil suit brought by New York State allege that the now-defunct Trump University, later known as the Trump Entrepreneur Institute, defrauded up to 5,000 students, who paid as much as $35,000 to learn Trump’s real-estate investment strategies and techniques.

AMI Newswire had this story:

Louis Piatt still regrets the day he signed up for Trump University. The Monroe, Iowa retiree says he was duped into squandering more than $11,000 on real estate seminars and workshops.

While Piatt lost money, Trump himself made millions. Trump University paid Donald J. Trump, the Republican presidential frontrunner, $5 million out of some $40 million received by the university from 2005 to 2010, court records show.

There are at least three active lawsuits against Trump and Trump University – one by the New York Attorney General’s Office and two related California class actions. Trump has said he has returned his $5 million in fees to the university, but the entity has yet to repay most of its former students.

It was clearly a sore spot for Trump and something I expect will be brought up as the campaign goes on.