MSNBC host Chris Hayes tangoed with Rep. Lee Zeldin Lee ZeldinDCCC reserves new ad buys in competitive districts, adds new members to 'Red to Blue' program Overnight Defense: House panel probes Pompeo's convention speech | UN council rejects US demand to restore Iran sanctions | Court rules against Pentagon policy slowing expedited citizenship The Hill's 12:30 Report: Republicans conduct in-person convention roll call MORE (R-N.Y.) on Tuesday night over how 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 has been praised by many Republicans for his meeting with North Korean leader Kim Jong Un, while former President Obama was criticized by some in the GOP, including Zeldin, for his opening to Cuba.

Hayes showed a clip of Zeldin, a prominent Trump supporter, criticizing Obama for kissing "the ring" of Cuban leader Raúl Castro in a 2015 Fox interview.

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"Do you understand why people feel like there is some bad faith and double standard here?" Hayes asked Zeldin.

Zeldin responded that the Cuban people "have long been oppressed."

"So have the North Koreans," Hayes interjected.

"Except here with regards to Cuba, we were making dozens of concessions, and not getting the reciprocation," Zeldin said, criticizing Obama's policies.

"You would agree that it's a crazy thing to say Kim Jong Un loves his people, which is what the president said today," Hayes said later in the interview.

"Yeah, there's a relationship that goes on between Kim Jong Un and his people that is certainly unique," Zeldin replied.

"The North Korean people believe that the troubles that they face are not in spite of Kim Jong Un," he continued. "It would be better to do what he can, and there's a lot more that he can do to improve the lives of his people."

"That I think we agree on," Hayes responded.

Trump and Kim held their historic summit on Tuesday, ending it with an agreement to denuclearize the Korean peninsula that left details to be worked out. Trump conceded to ending joint war games with South Korea while the negotiations continue.

Democrats, many of whom praised Obama for his opening to Cuba, have largely criticized the Trump-Kim summit, arguing the president raised the image of North Korea and gave Kim a propaganda victory.

But there have been voices of dissent within both parties.

Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.), who finished second to Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE in the 2016 Democratic presidential primary, released a favorable statement about the Trump-Kim summit.

"While very light on substance, the meeting between President Trump and Kim Jong Un in Singapore represents a positive step in de-escalating tensions between our countries, addressing the threat of North Korea’s nuclear weapons, and moving toward a more peaceful future," Sanders said.

"Congress has an important role to play in making sure this is a meaningful and serious process and not just a series of photo ops," he added.

And some Republicans such as Sen. Jeff Flake Jeffrey (Jeff) Lane FlakeHow fast population growth made Arizona a swing state Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden MORE (R-Ariz.) backed Obama's changes to Cuba policy.

--Updated at 9:40 a.m.