Ivanka Trump says she believes her father's denials of sexual misconduct.

"I believe my father, I know my father. I think I have that right, as a daughter, to believe my father," she said in an interview with NBC while visiting South Korea for the Olympic Games.

Ivanka Trump, the president's eldest daughter and top White House adviser, says she does not believe the approximately 20 women who have accused her father of sexual misconduct.

In an interview with NBC News while in South Korea for the Winter Olympics, Trump told Peter Alexander that the question of whether she believed her father's denials of wrongdoing was "inappropriate" and that she had a "right" as a daughter to believe her father.

"I think it's a pretty inappropriate question to ask a daughter if she believes the accusers of her father when he's affirmatively stated there's no truth to it," she said. "I don't think that's a question you would ask many other daughters."

She added: "I believe my father, I know my father. I think I have that right, as a daughter, to believe my father."

Trump's criticism of the question sparked immediate backlash from reporters, who argue that as a senior White House staffer she should be accountable to the public on all issues concerning President Donald Trump.

"Trying to figure out what part of this is inappropriate," CNN's Jake Tapper tweeted on Monday. "She works for the taxpayers, says she focuses on women's issues, was at the interview because she went to the Olympics to represent the USA, is an adult, and has spoken publicly about accusations against others."

A Washington Post political reporter, Jenna Johnson, said the White House had stressed Ivanka Trump's role as a top West Wing official on her visit to South Korea, where she led the US delegation at Sunday's closing ceremony and met with the country's prime minister and other top government officials.

"The White House went out of its way to make clear that Ivanka Trump traveled to South Korea as a senior adviser to the president, not a first daughter," Johnson tweeted. "But as soon as she's hit with a difficult question, suddenly she's a daughter."