Donald Trump, David Muir

President Donald Trump agreed to his first one-on-one interview with Syracuse native David Muir.

(ABC News)

President Donald Trump sat down for his first one-on-one interview since Inauguration Day with Syracuse native David Muir.

The "World News Tonight" anchor asked Trump about a wide range of topics: the proposed wall along the U.S.-Mexico border, torture tactics like waterboarding, threats to "send in the Feds" in Chicago, and allegations of voter fraud. However, much of the conversation skewed to criticism of the media as Trump sidestepped questions and focused on his own popularity.

"Let me just tell you, you know what's important, millions of people agree with me when I say that if you would've looked on one of the other networks and all of the people that were calling in they're saying, 'We agree with Mr. Trump. We agree.'They're very smart people," Trump said after Muir asked about plans to investigate allegations of voter fraud with no evidence. Trump claimed the discussions about alleged voter fraud were "supposed to be a confidential meeting."

"But you have tweeted about the millions of illegals," Muir responded.

Trump didn't acknowledge Muir's clarification and similarly refused to answer direct questions, such as whether U.S. taxpayers will pay for the construction of the Mexican wall at first, if people on Obamacare will lose health insurance coverage, and whether "dreamers," children of illegal immigrants, will be allowed to stay in America.

"I'm gonna tell you over the next four weeks," Trump teased when asked about the latter.

Trump similarly promised to talk about "CIA black sites" two hours after the interview was taped Wednesday at the White House, but never discussed it during his afternoon announcement of executive orders for the wall and potential penalties for sanctuary cities.

During the interview, Trump also repeated his electoral college strategy, criticized Hillary Clinton and called his election "one of the greatest victories ever." Trump lost the popular vote by nearly 3 million votes.

President Trump to launch investigation into alleged voter fraud: "I want the voting process to be legitimate." https://t.co/zjjJ6vMqXU pic.twitter.com/gDK765766l — ABC News (@ABC) January 26, 2017

Muir then directed the conversation to Trump's CIA speech, which focused on crowd size at his inauguration and his Time magazine cover.

"And I just wanna ask you when does all of that matter just a little less? When do you let it roll off your back now that you're the president?" Muir asked.

"That speech was a home run. That speech, if you look at Fox, OK, I'll mention you -- we see what Fox said. They said it was one of the great speeches," Trump said. "They showed the people applauding and screaming and -- and they were all CIA...

"I got a standing ovation. In fact, they said it was the biggest standing ovation since Peyton Manning had won the Super Bowl and they said it was equal. I got a standing ovation. It lasted for a long period of time. What you do is take -- take out your tape -- you probably ran it live. I know when I do good speeches. I know when I do bad speeches. That speech was a total home run. They loved it."

Trump accused ABC News and other media of being unfair.

"You and other networks covered it very inaccurately. I hate to say this to you and you probably won't put it on but turn on Fox and see how it was covered," Trump said. "That speech was a big hit, a big success -- success. And then I came back and I watched you on television and a couple of others."

"Not me personally," Muir responded.

"Not you personally but your network -- and they tried to demean the speech. And I know when things are good or bad. A poll just came out on my inauguration speech which was extraordinary that people loved it. Loved and liked. And it was an extraordinary poll," Trump said.

"So, polls and crowd size and covers on Time, those still matter now that you're here as president," Muir said.

"Well, you keep bringing it up," Trump insisted. "I had a massive amount of people here. They were showing pictures that were very unflattering, as unflattering -- from certain angles -- that were taken early and lots of other things. I'll show you a picture later if you'd like of a massive crowd... But I didn't bring it up. You just brought it up."

"See, I -- I'm not interested in the inaugural crowd size," Muir responded. "I think the American people can look at images side by side and decide for themselves. I am curious about the first full day here at the White House, choosing to send the press secretary out into the briefing room, summoning reporters to talk about the inaugural crowd size. Does that send a message to the American people that that's -- that's more important than some of the very pressing issues?"

Trump ignored Muir's question and continued to talk about crowd size.

"I won't allow you or other people like you to demean that crowd and to demean the people that came to Washington, D.C., from faraway places because they like me. But more importantly they like what I'm saying," Trump told Muir.

"I think you're demeaning by talking the way you're talking. I think you're demeaning. And that's why I think a lot of people turned on you and turned on a lot of other people. And that's why you have a 17 percent approval rating, which is pretty bad."

Pres. Trump 'won’t allow' anyone to demean people in Inauguration crowd. "We had the biggest audience in the history of inaugural speeches." pic.twitter.com/Rt1c2f4Y9U — ABC News (@ABC) January 26, 2017

Trump did not clarify what approval rating he was referring to. Muir and ABC News are leading NBC and CBS in news ratings this season for the first time in nearly 20 years; "World News Tonight" averages 9 million viewers.

Muir, a graduate of Onondaga Central and Ithaca College, told syracuse.com in November that he wouldn't let Trump's criticisms of the media change his coverage.

"I think we have a very important job to do and we recognize every day that we're reporting to a divided America," he said. "We're aware that there are concerns still and people who felt very strongly about this election and I think we have a responsibility to make sure we're still asking the questions that are important to people at home."

The interview aired in a one-hour special Wednesday night; the full transcript is available at ABCNews.com. Muir anchors "World News Tonight" weekdays on ABC and co-hosts "20/20."