President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Wednesday said he’s optimistic for his upcoming planned meeting with North Korean leader Kim Jong Un, but added he’d be unafraid to walk out if conditions aren’t beneficial to the U.S.

“We’ve never been in a position like this with that regime, and I hope to have a very successful meeting,” Trump said in Florida during a joint press conference with Japanese Prime Minister Shinzo Abe.

“If we don’t think it’s going to be successful, Mark, we won’t have it. If I think that it’s a meeting that’s not going to be fruitful. I won’t go. If the meeting when I’m there is not fruitful, I will respectfully leave,” he told reporter Mark Landler of The New York Times.

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Trump added that he likes to remain “flexible.”

Trump is expected to meet with Kim in the coming months, potentially becoming the first U.S. president to sit down with a leader of North Korea. A date and location for the meeting has not been determined.

The Washington Post reported Tuesday that CIA Director Mike Pompeo Michael (Mike) Richard PompeoOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Overnight Defense: House Democrats unveil stopgap spending measure to GOP opposition | Bill includes .6B for new subs | Trump issues Iran sanctions after world shrugs at US action at UN Navalny calls on Russia to return clothes he was wearing when he fell ill MORE, Trump's nominee to be the next secretary of State, visited North Korea over Easter weekend and met with Kim amid ongoing tensions over Pyongyang's nuclear program.

Trump said those talks went “very well.”

The U.S. and North Korea had a testy relationship for much of Trump's administration, with the president occasionally taunting Kim over his arsenal and the size of his "nuclear button."

However, tensions have calmed since the new year, with North Korea expressing a willingness to engage with South Korea and possibly put an official end to the Korean War.