Rep. Justin Amash Justin AmashInternal Democratic poll shows tight race in contest to replace Amash Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill On The Trail: How Nancy Pelosi could improbably become president MORE (R-Mich.) on Wednesday disputed 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's claim that GOP lawmakers approved of his attacks on Rep. Mark Sanford Mark SanfordOn The Money: Business world braces for blue sweep | Federal Reserve chief to outline plans for inflation, economy | Meadows 'not optimistic' about stalemate on coronavirus deal Trump critic Sanford forms anti-debt advocacy group Republicans officially renominate Trump for president MORE (R-S.C.) during a closed-door meeting on immigration Tuesday night.

The president tweeted Wednesday afternoon that House Republicans "applauded and laughed loudly" when he called Sanford a "nasty guy."

"House Republicans had front row seats to @POTUS’s dazzling display of pettiness and insecurity. Nobody applauded or laughed. People were disgusted," Amash tweeted in response.

House Republicans had front row seats to @POTUS’s dazzling display of pettiness and insecurity. Nobody applauded or laughed. People were disgusted. https://t.co/FvmDCxElgv — Justin Amash (@justinamash) June 20, 2018

During the meeting, Trump asked if Sanford was in attendance before taking a shot at him — Sanford was not present because his flight to Washington, D.C., was delayed.

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The comments were met with boos and and grumbles, according to multiple sources in the room.

Amash called the remarks a "classless cheap shot," tweeting on Wednesday that people in the meeting "were disgusted."

“I was very upset. It was very unnecessary and as far as I’m concerned, it was very rude,” Rep. Walter Jones Walter Beaman JonesExperts warn Georgia's new electronic voting machines vulnerable to potential intrusions, malfunctions Georgia restores 22,000 voter registrations after purge Stacey Abrams group files emergency motion to stop Georgia voting roll purge MORE (R-N.C.) said. “To make light of Mark Sanford is very unacceptable."

Sanford appeared on CNN shortly after Trump tweeted, saying he thought that Trump's comments at the Tuesday meeting were meant to caution other GOP lawmakers against opposing the president.

“I think part of what the president did yesterday was to send a very chilling message to my colleagues on, ‘hey, if you speak up against me, there will be consequences,’ ” Sanford said. “And I think that’s the last thing we need in our system.”

The outgoing congressman said he'd heard an outpouring of "awfully kind things" from fellow lawmakers.

Sanford, who lost his primary race last week after intervention by Trump for his opponent, has been an outspoken critic of the president's rhetoric, but has largely supported the administration's policies.

Trump previously endorsed Sanford's primary opponent hours before polls closed, saying the South Carolina representative has been "very unhelpful to me in my campaign to [Make America Great Again]."