Stephen Colbert on Wednesday mocked President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE for taking a sip of water in the middle of his speech recapping his Asia trip.

"Donald Trump is back in the U.S. of A. and he went on TV today to brag about how great his Asia trip was. And it turns out, it wasn't just attention he was thirsty for," Colbert said on his late-night show.

Colbert played a clip of the president abruptly pausing during his speech Wednesday at the White House and looking under his lectern for water. Trump then turned to the side, picked up a bottle of water with both hands and took a sip.

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"Wow, that is hard to watch," Colbert said, before imitating Trump taking a sip of water.

"Alright that's not fair, OK, everybody gets dry mouth. I can't stand here on national television and make fun of a politician just for drinking water. That is childish and Trump already did it way better with Rubio," Colbert said.

Colbert then played a clip in which Trump mocked Sen. Marco Rubio Marco Antonio RubioSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Florida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll MORE (R-Fla.) for a water break he took during his 2013 response to the State of the Union.

In the clip, Trump imitates Rubio, saying, "Help me, I need water."

"This is on live television, this total choke artist," Trump continues, in the clip. "Unbelievable."

"Unbelievable," Colbert, a frequent critic of the president, said after the clip played, "that you are the president."

Trump took the sip of water during an address Wednesday where he focused exclusively on his trip to Asia and the U.S. standing in the region. He notably did not discuss the current controversy surrounding Republican Alabama Senate candidate Roy Moore, who has been accused by multiple women of sexual misconduct, including assault.