Wisconsin Gov. Scott Walker raised multiple concerns Thursday about Wednesday night’s Republican presidential debate — which he is widely considered to have lost — and complained about everything from the questioning to the temperature in the room.

Appearing on “The Laura Ingraham Show,” Walker said CNN appeared to steer the debate to one-on-one confrontations — to the detriment of the American people.

“It was like a cage match. It was basically saying, ‘OK, throw out something and two of you gotta go attack each other on this,’ as opposed to saying, ‘What’s you plan for health care? What’s your plan for the economy? What’s your plan for energy independence?’” he said. “The format was bizarre. But I think it was driven by ratings.”

Walker suggested the format was set up to capitalize on Donald Trump’s pugilistic style.

Not to mention, Walker added, it was oppressively hot on the stage.

Considered a top-tier candidate when he launched his campaign in July, Walker has seen his standing in the polls slide, particularly in Iowa, where he had been the leader. At times, he has appeared lost, and most analysts did not consider him among the winners Wednesday night. According to a tally by National Public Radio, Walker got 8 minutes and 29 seconds of airtime — less than half the time front-runner Donald Trump got.

Walker told Ingraham that the strong and deep field makes it hard to break out.

“The challenge is there’s such a good, strong field of conservatives out there that it kind of spreads the vote around,” he said.

Walker said his son offered an observation: The questions were designed in such a way that candidates got more time the more they attacked other Republicans. He said the focus should be on Democratic front-runner Hillary Clinton.

“Lord help us if Hillary Clinton is elected president,” said Walker.

Walker doubled down on his debate attack line against Trump — that the country did not need another “apprentice” in the White House.

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Still, Walker doubled down on his debate attack line against Trump — that the country did not need another “apprentice” in the White House. Walker said the country needs someone with experience actually shaking up government.

“Think of all those CEOs on the stage. If they were going to hire someone to take over a company for them, they’d want to hire someone who’d done a good job taking challenges on,” he said. “That’s our case. That’s what we’ve done.”

Walker criticized President Barack Obama for committing to ramping up the number of Syrian refugees that the United States will accept — with a first installment of 10,000 in the fiscal year that starts Oct. 1.

“That’s addressing the symptoms and not the problem of a destabilized Middle East,” he said. “There’s a whole wave of people coming in who could be terrorists.”

Walker said America is not given credit for what it has done, including the resettlement of roughly 70,000 refugees a year and billions of dollars.

He said immigrants should learn English. He recalled that his great-great-grandparents spoke some German at home, but always English in public.

“This is the strength of the melting pot; there’s got to be common bonds,” he said.