Sen. Lindsey Graham (R-S.C.) said on "Hannity" Tuesday that Saudi Arabia needs the United States' support more than the United States needs Saudi Arabia. 

Graham said the relationship with Saudi Arabia is strategic and cannot be ended, but said he refuses to "look away" after the killing of journalist Jamal Khashoggi at the Saudi consulate in Turkey. 

Earlier on Tuesday, President Trump drew widespread criticism, including from Republicans, for casting doubt on whether Saudi Crown Prince Mohammad bin Salman was involved in the plot to kill Khashoggi, a prominent critic of the royal family.

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"King Salman and Crown Prince Mohammad bin Salman vigorously deny any knowledge of the planning or execution of the murder of Mr. Khashoggi. Our intelligence agencies continue to assess all information, but it could very well be that the Crown Prince had knowledge of this tragic event – maybe he did and maybe he didn’t,” Trump said in the statement.

Reports last week indicated U.S. intelligence officials had concluded bin Salman ordered Khashoggi to be murdered and dismembered. 

Graham said bin Salman is "crazy" and "needs to go" after the killing. 

"It's not too much to ask an ally not to butcher a guy in a consulate. This is not World War II," he said. 

Graham has called for "serious sanctions" against the royal family in response, predicting there will be strong bipartisan support for the sanctions in Congress.

Watch the full interview above.

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