Shark Tank investor Kevin O’Leary cautioned Democrats that they might regret having elevated Vice President Kamala Harris to the top of the ticket, potentially realizing their mistake when it’s too late.

O’Leary, in an interview with Fox News’ Rachel Campos-Duffy on Saturday, pointed out that while Democrats may be celebrating a successful Democratic National Convention in Chicago, they might be failing to acknowledge the potential that Harris could become a second version of Hillary Clinton.

“It’s 50-50, she may win, she may lose. This whole party, the Democratic Party, is going to revisit what happened here because they did the same thing with Hillary Clinton. It was assumed she would win, they anointed her, she lost. Harris is assumed a winner by atonement. If she loses, the party will never do this to itself again because they missed the opportunity to run a process and suck up another week of airtime — and they didn’t do it!” O’Leary said.

The investor and host pointed to California Gov. Gavin Newsom’s sarcastic remarks about the “very inclusive process” of selecting Harris as the party’s nominee. He noted that this was one of the few areas where he and the Democratic governor found common ground.

“I’m not saying she’s going to lose, but I would have never let that happen if I’m selling a business,” he said. “I tell my managers, never bring me one offer, bring me a process, show me there’s no other bid out there that I want, then I’ll make a decision if I’m selling. I was amazed they didn’t do that here.”

Earlier this month, O’Leary questioned Minnesota Gov. Tim Walz’s financial expertise for the vice presidency after Harris chose him to be her running mate.

O’Leary shared his concerns on Fox Business, citing his own research into Walz’s minimal financial investments, which have been both praised and criticized for reflecting his modest net worth. O’Leary emphasized that, despite initial appearances, Walz’s limited experience in job creation and economic markets could present substantial risks.

“I didn’t know anything about the VP candidate, Tim, and so I did some digging last week – I got the data last Friday. He is not a good manager,” said the investment guru. “If you look at his stewardship of his state, Minnesota, it’s been not good. People may say ‘No, you’re partisan, you’re partisan.’ No, I’m not! I’m looking at the track record of an individual who came into a state and wiped out job creation. He wiped out job creation in professional services, manufacturing, accounting—every subcategory.”

“You look at those jobs, and they moved to South Dakota, North Dakota. The South Dakota job rate right now is four times that of Minnesota. Minnesota only creates jobs in services that are funded by the government, such as healthcare and social services; every other sector is in decline. He’s also added a surcharge of one percent (100 basis points) on top of the 9.8% taxes on individuals who are retiring, and of course, they’re leaving the state in droves.”

He added: “He’s the best governor for Texas, Florida, North and South Dakota, but not for Minnesota.”