FILE - In this Oct. 10, 2018, file photo, people hold signs during a protest at the Embassy of Saudi Arabia about the disappearance of Saudi journalist Jamal Khashoggi, in Washington. Saudi Crown Prince Mohammed bin Salman’s first trip abroad since the killing of Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (AP Photo/Jacquelyn Martin, File )

FILE - In this Oct. 24, 2018photo released by Saudi Press Agency, SPA, Saudi Crown Prince, Mohammed bin Salman addresses the Future Investment Initiative conference, in Riyadh, Saudi Arabia. Salman’s first trip abroad since the killing of Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (Saudi Press Agency via AP, File)

FILE - In this May 20, 2017, file photo, President Donald Trump shakes hands with Saudi Crown Prince Mohammed bin Salman, in Riyadh, Saudi Arabia. Salman’s first trip abroad since the killing of Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (AP Photo/Evan Vucci, File)

FILE - In this Nov. 2, 2018 file photo, a video image of Hatice Cengiz, fiancee of slain Saudi journalist Jamal Khashoggi, is played during an event to remember Khashoggi, in Washington. Saudi Crown Prince Mohammed bin Salman’s first trip abroad since the killing of Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (AP Photo/J. Scott Applewhite, File)

FILE - In this March 20, 2018 file photo, President Donald Trump shows a chart highlighting arms sales to Saudi Arabia during a meeting with Saudi Crown Prince Mohammed bin Salman in the Oval Office of the White House, in Washington. Salman’s first trip abroad since the killing of Saudi writer Jamal Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (AP Photo/Evan Vucci, File)

FILE -- In this May 20, 2017 file photo, Saudi King Salman presents President Donald Trump with the highest civilian honor, the Collar of Abdulaziz Al Saud, at the Royal Court Palace, in Riyadh, Saudi Arabia. Crown Prince Mohammed bin Salman’s first trip abroad since the killing of Saudi journalist Jamal Khashoggi will offer an early indication of whether he will face any repercussions. The prince will attend the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (AP Photo/Evan Vucci, File)

FILE - In this Oct. 2, 2018file image taken from CCTV video obtained by the Turkish newspaper Hurriyet, shows Saudi journalist Jamal Khashoggi entering the Saudi consulate in Istanbul. Saudi Crown Prince Mohammed bin Salman’s first trip abroad since the killing of Khashoggi will offer an early indication of whether he will face any repercussions. The prince is visiting close allies in the Middle East before attending the Group of 20 Summit in Argentina, where he will come face to face with Trump, who appears keen to preserve their friendship, as well as European leaders and Turkey’s president, who has stepped up pressure on the kingdom. (CCTV/Hurriyet via AP, File)