WATCH: Zelenskyy ‘needs to resign’ or ‘change’ after tense meeting with Trump, Sen. Lindsay Graham says

Sen. Lindsay Graham questioned whether the U.S. can continue to work with Ukrainian President Volodymyr Zelenskyy on Friday.

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“What I saw in the Oval office was disrespectful and I don’t know if we can ever do business with Zelenskyy again,” Graham told reporters outside the West Wing.

WATCH: Zelenskyy departs White House after Trump and Vance chastise him in tense meeting

He said Zelenskyy has “made it almost impossible to sell to the American people that he’s a good investment.”

Graham called the meeting a “complete, utter disaster” and said he’s “never been more proud” of Trump.

Asked whether Zelenskyy should step aside, Graham responded: “He either needs to resign or send somebody over that we can do business with, or he needs to change.”