Sen. Tim Kaine Timothy (Tim) Michael KaineDemocrats call for declassifying election threats after briefing by Trump officials Buttigieg stands in as Pence for Harris's debate practice Trump meets with potential Supreme Court pick Amy Coney Barrett at White House MORE (D-Va.) on Friday responded to a report that President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE had sent North Korean leader Kim Jong Un a copy of the song "Rocket Man" by joking that Kim could send the Green Day record “American Idiot” in response.

And Kim Jong Un sends back a copy of Green Day’s “American Idiot.” https://t.co/YCGjR2QcgU — Tim Kaine (@timkaine) July 6, 2018

The report that Secretary of State Mike Pompeo Michael (Mike) Richard PompeoTreasury sanctions individuals, groups tied to Russian malign influence activities Navalny released from hospital after suspected poisoning Overnight 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 MORE was giving Kim a copy of the classic Elton Jong song — signed by Trump — originated in The Chosun Ilbo, a South Korean newspaper.

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"The 'Rocket Man' CD was the subject of discussion during Trump's lunch with Kim. Kim mentioned that Trump referred to him as 'rocket man' when tensions ran high last year," a source told the paper.

“Trump then asked Kim if he knew the song and Kim said no."

Trump repeatedly used the "rocket man" nickname to mock Kim last year.

“I spoke with President Moon of South Korea last night. Asked him how Rocket Man is doing,” Trump wrote on Twitter in September.

Last month, Trump and Kim signed a joint statement that said the America would give North Korea “security guarantees,” while Kim pledged to work toward the “complete denuclearization of the Korean Peninsula.”

But that statement did not include details or a timeline as to how Pyongyang would dismantle its nuclear weapons program.