Corker, the Republican chairman of the Senate Foreign Relations Committee, acknowledged the case - if Saudi responsibility is confirmed - could complicate the USA strategy to contain Iran, in its bid to gain influence throughout the Middle East.
The Global Magnitsky Act requires a report within 120 days of the letter with a decision on the imposition of sanctions on anyone deemed responsible for a serious rights violation such as torture, prolonged detention without trial or extrajudicial killing of someone exercising freedom of expression. He served as an adviser to senior Saudi officials.
Turkish authorities are investigating the case of dissident Saudi journalist Jamal Khashoggi in all its dimensions, President Recep Tayyip Erdoğan said yesterday, while underlining that Ankara was concerned over his disappearance since October 2, when he was last seen to have entered the Saudi Arabia Consulate in Istanbul.
Turkish officials say they believe he was killed in the consulate, a claim Riyadh has dismissed as "baseless".
The prince denied as "absolutely false" any suspicion that Saudi agents might have detained or killed Khashoggi, and contended it was "outrageous" to think he might have been "murdered in the consulate, during business hours, and with dozens of staff and visitors in the building". He said his aides have been in contact with Khashoggi's fiancee, Hatice Cengiz, and hope to set up a meeting with her at the White House.
They urged Trump to consider any information in the investigation "including with respect to the highest ranking officials in the Government of Saudi Arabia".
"If it plays out the way it may play out, then we'll see significant and meaningful tactical changes in the relationship that in large part are driven by the legislative branch", Price said. "We want to see what's going on".
Trump added: "Nobody knows what happened yet".
"Although this incident could potentially fuel a political crisis between the two nations, let us not lose sight of the human aspect of what happened", she wrote. The administration also relies on Saudi support for its Middle East agenda to counter Iranian influence, fight extremism and support an expected peace plan between Israel and the Palestinians.
In a fresh clue, a pro-government Turkish daily on Wednesday published preliminary evidence from investigators it said identified a 15-member Saudi intelligence team involved in Khashoggi's unexplained disappearance on October 2.
"The Saudis have a lot of explaining to do because all indications are that they have been involved at minimum with his disappearance", Corker told The Associated Press.
A source told the Washington Post that USA intelligence "intercepted communications of Saudi officials discussing a plan to capture him".
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The revelation marks a potentially explosive twist in the case of Mr. Khashoggi, 59, who vanished a week ago while visiting the Saudi Consulate in Istanbul.
According to pro-government daily Sabah, the team arrived in Istanbul on two private planes, one which landed after 03:00 am (0000 GMT) on Tuesday while the second plane landed around 05:00 pm (1400 GMT) after Khashoggi entered the consulate.
Turkish authorities said Khashoggi was killed by an elite "assassination squad". Under the Vienna Convention, foreign diplomatic missions are sovereign territory and a host country can not enter without permission.