Donald Trump said he had gotten the US out of NATO as president, but meant NAFTA.
Trump has repeatedly questioned US membership of NATO, but did not act on threats to withdraw.
Trump, who is seeking election again in 2024, boasted about his achievements as president in an interview Tuesday with Fox News' Sean Hannity.
Trump as president repeatedly criticised NATO, berating other members for not spending more on defense, and threatened to pull out of the treaty.
Trump, since launching his 2024 bid, has sought to portray his likely opponent, President Joe Biden, as in cognitive decline.