NEW YORK — U.N. Ambassador Nikki Haley defended President Trump on Wednesday, saying Americans are more prosperous than ever and blaming a “disgusting” barrage of media criticism for making “us look bad” to the rest of the world.

“It’s gotten so disgusting, really,” Haley said in a morning appearance on “Fox & Friends.” “The idea that he’s not mentally fit. The idea that we’d be talking about the 25th Amendment. None of that is true — it couldn’t be farther from the truth. You’ve got a president who is nonstop going all the time. The Cabinet is just trying to keep up with him.”

Haley’s comments came a day after some world leaders laughed when Trump asserted during a speech to the U.N. General Assembly that he had already accomplished more than most of his predecessors at the White House. The awkward moment prompted Trump to confess from the podium that he “didn’t expect that reaction,” though he later insisted to reporters that he intended to get laughs.

Trump has been beset by renewed questions about his competence. A new book, “Fear,” by journalist Bob Woodward reported that top aides sought at times to hide information from the president or disregard his orders in an effort to stop what they believed were Trump’s worst instincts. And an anonymous op-ed in the New York Times, written by an administration official, asserted that numerous Trump aides were working to protect the country from his impulsive decision-making.

President Trump elicited laughter at the start of his address to world leaders Sept. 25 at the U.N. General Assembly in New York. (Reuters)

“He’s getting things done left and right,” Haley said. “How can you honestly think a man who doesn’t know what he’s doing is getting this much done on jobs, on trade deals, on foreign policy, look at the stock market. Americans are living better than they ever have, and you’re going to question his leadership?”

Haley said that Trump was respected by his global peers and insisted that it was the U.S. media that looks foolish in its coverage of the president.

“I looked at the media yesterday, and they all want to talk about what the worldview of the president is; what they need to understand is the world doesn’t understand the media in America right now,” she said, adding that she had a conversation about Trump with a world leader on Tuesday.

“He said, ‘I can’t believe that they would ever talk about impeachment, the 25th Amendment.’ He said: ‘Do they understand this is America? You don’t play with something like that,’ ” Haley said. “Leaders don’t understand why this is even a conversation, and they find it difficult for this country.”