Mohammed bin Salman
When President Biden was still campaigning for president he said he would treat the bin Salman as the pariah Biden called bin Salman because of the poor human rights situation, and the killing of journalist Kashoggi. One of President Biden's first acts as president was releasing the CIA report that blamed bin Salman of giving the order to kill Kashoggi, and before the report was published, President Biden called with King Salman saying he is the King and official leader of the country and not bin Salman, the Saudis rejected the report. Biden also paused the sale of ammunition to the Saudi-Arabia further lowering relations with Saudi-Arabia. In 2022 and 2023 the OPEC started producing less oil leading to negative reactions from the Biden administration.