After warning Donald Trump for weeks that he needed to up his game to prevent Kamala Harris from winning in November, Republican pollster and former strategist Frank Luntz predicted that Tuesday night’s poor presidential debate had done Trump in once and for all.

“It was a pretty negative performance — pretty pessimistic, cynical, dismissive,” Luntz said Wednesday on Piers Morgan Uncensored. “And I think this is going to cost him money, yes.”

“I’m trying to decide whether I want to record it, and the answer is yes,” he added. “I think he loses because of his performance in the debate.”

After the debate, in which Harris emerged as the winner according to polls, focus groups and many commentators on the network, Trump lashed out at the moderators for fact-checking his many false claims.

Harris immediately challenged the former president to another meeting, but Trump told Fox News Wednesday morning that he would be “less inclined” to participate because he did so well the first time.

Luntz made his prediction regardless of whether further debates would take place.

“This isn’t the worst debate performance I’ve seen in my career, but it’s pretty close,” Luntz said, citing “the talk about people eating dogs and cats, the naming of the leader of Hungary as one of the greatest world leaders, the repeated missing of the opportunity to focus on inflation and affordability, and the complete inability to present his case without completely trashing her, Joe Biden, and whoever else is in his sights.”

It’s safe to say that Trump didn’t heed Luntz’s advice after Harris’ sudden entry into the race in July. The following month, Luntz told CNBC that Trump should stop talking about the size of his rally crowds, something he promptly did on Tuesday after Harris called out his continued fixation on the topic.

Luntz said around the same time on CNN that Trump “has been very negative and very hostile” — traits he displayed again Tuesday night before an audience of 67.1 million, according to Nielsen.