Democratic Sen. Tim Kaine Timothy (Tim) Michael KaineHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Democrats call for declassifying election threats after briefing by Trump officials Buttigieg stands in as Pence for Harris's debate practice MORE (Va.) mocked President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE over an old criticism of former President Obama after world leaders chuckled on Tuesday when Trump boasted about his administration's accomplishments.

Kaine, who was Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonFox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio Trump, Biden court Black business owners in final election sprint The power of incumbency: How Trump is using the Oval Office to win reelection MORE's running mate in 2016, quoted a 2014 tweet in which Trump complained that Obama was a "laughing stock to the entire World" and suggested the country needed a "truly great leader."

"I agree," Kaine responded on Tuesday.

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Kaine's remark came shortly after an audience of world leaders at the United Nations General Assembly chuckled during the opening remarks of Trump's speech.

"In less than two years, my administration has accomplished more than almost any administration in the history of our country," Trump said.

The laughs grew louder after Trump added "so true."

Trump then smiled and paused, before responding: "I didn't expect that reaction, but that's OK."

Donald Trump: "My administration has accomplished more than almost any administration in the history of this country"



US President's opening remarks raise muted laughs as he addresses UN General Assembly in New York https://t.co/g0QdKS5FWa pic.twitter.com/JOnfvvGn99 — BBC News (World) (@BBCWorld) September 25, 2018

The president often boasts that his administration has accomplished more than any other administration during a similar time frame.

He touted his administration in May as the most successful over a 17-month period, which followed his claim that he'd had "one of the most successful 13 weeks in the history of the presidency" to start his term.