Russian President Vladimir Putin and Saudi Crown Prince Mohammed bin Salman greeted each other with a high five when they met in Argentina for the Group of 20 summit on Friday.

The two leaders, along with President TrumpDonald John TrumpTrump mocks wind power: 'When the wind doesn't blow, just turn off the television' Pentagon investigator probing whether acting chief boosted former employer Boeing Trump blasts McCain, bemoans not getting 'thank you' for funeral MORE, are in Buenos Aires to attend a two-day summit of the world's 20 largest economies.

The interaction between Putin and the crown prince quickly drew attention from some Democrats, including Sen. Bob MenendezRobert (Bob) MenendezThe Hill's 12:30 Report: Manafort sentenced to total of 7.5 years in prison Acting Defense chief calls Graham an 'ally' after tense exchange William Barr is right man for the times MORE (N.J.)., the ranking member of the Senate Foreign Relations Committee, who tweeted a clip of the short embrace along with the caption: “That feeling when you own the President of the United States and can do whatever you want.”

Sen. Chris MurphyChristopher (Chris) Scott MurphyThe fear of colorectal cancer as a springboard for change Dems shift strategy for securing gun violence research funds The Hill's 12:30 Report: O'Rourke jumps into 2020 fray MORE also weighed in, saying on Twitter: “These guys are 10x more powerful under Trump than they were before. Why wouldn’t they be fired up?”

The crown prince and Saudi Arabia are under intense scrutiny from lawmakers on Capitol Hill following the killing of U.S.-based journalist Jamal Khashoggi.

Khashoggi was killed after entering the Saudi Consulate in Istanbul on Oct. 2. He had been an outspoken critic of Saudi leadership as an opinion writer for The Washington Post.

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Riyadh has made efforts to distance the crown prince from the murder in the wake of news reports that the CIA concluded that Khashoggi was murdered on his orders.

While many world leaders have also condemned the crown prince over Khashoggi’s murder, Putin has not.

"We do not know what happened in reality. So why should we undertake any steps to deteriorate our relations with Saudi Arabia?" Putin said in reference to Khashoggi’s death last month, according to The Financial Times.

Trump has also been reluctant to point the finger of blame at the crown prince, saying the Saudi leader has denied any involvement in the journalist's murder.