Sen. Lindsey Graham Lindsey Olin GrahamSenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (R-S.C.) on Sunday criticized the Trump administration pushing through arms sales to Saudi Arabia, citing the murder of journalist Jamal Khashoggi.

"I’ve got a real problem with going back to doing business as usual with Saudi Arabia," Graham said on "Fox News Sunday."

"Jordan is a great ally. The [United Arab Emirates] has been problematic in Yemen but are a good ally. Saudi Arabia is a strategic ally, but [Saudi Crown Prince Mohammed bin Salman] was, in my opinion, involved in the murder of Mr. Khashoggi, and he’s done a lot of other disruptive things, so I don’t support the arms sales now," he continued.

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Khashoggi was killed after entering the Saudi Consulate in Istanbul on Oct. 3, 2018.

U.S. and international intelligence agencies have concluded that the crown prince authorized the operation.

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, however, has declined to condemn him, questioning whether he was involved in the killing.

Saudi authorities have announced investigations of 21 people connected to Khashoggi's death, and prosecutors are seeking the death penalty for five men accused of being directly involved.

The Trump administration on Friday invoked an emergency provision of the law governing arms sales to immediately sell Saudi Arabia and other Gulf allies weapons without congressional approval.

The move has been slammed by Democrats who say the threat of Iran cited by President Trump is inflated.

In a four-paragraph statement, Senate Foreign Relations Committee ranking member Bob Menendez (D-N.J.) criticized the administration as failing "to even identify which legal mechanism it thinks it is using," adding the notification "described years of malign Iranian behavior but failed to identify what actually constitutes an emergency today."