>> It's a relationship built for decades on shared security interests, but now the close partnership between Saudi Arabia and the US is being shaken to the core. Amid allegations a Saudi team may have killed journalist Jamal Khashoggi on a visit to the nation's consulate last week in Istanbul which Riyadh denies.
>> Something like that should not happen, and we intend to get to the bottom of it.>> Reporter Yara Bayoumy is following the story.>> So the Trump administration faces a key dilemma, particularly because this administration has cultivated especially close ties with the new Saudi leadership under Crown Prince Mohammed bin Salman.
For Trump at least, primarily because Saudi Arabia is a very rich country that can buy a lot of U.S. weapons. Which translates into U.S. jobs, which was a key message for Trump when the Crown Prince visited earlier this year.>> But those weapon sales are now being called into question in Congress, amid a bipartisan outcry over the fate of Khashoggi.
>> It can't be condoned. And the way we deal with Saudi Arabia will be a message to others.>> Democrats and Republicans demanding answers. Some calling for sanctions against Saudi Arabia if the allegations are true, which could include blocking the sale of arms. Trump on Thursday said he would oppose cutting off arms to Riyadh in response to Khashoggi's disappearance.
>> I don't like the concept of stopping an investment of $110 billion into the United States, because you know what they're going to do? They're going to take that money and spend it in Russia, or China, or someplace else? But there are other things we can do.>> Also in play,the two countries' shared interest in containing the ambitions of Iran.
>> The Americans depend on the Saudis in large part as part of their overall strategy in terms of containing Iran, including keeping up the oil supply to make up for the shortfall in Iranian production, given the US sanctions on Iran.>> Any sharp US action against Saudi Arabia would come in contrast to its muted tone on other matters.
From the kingdom's role in the war in Yemen, to its crackdown on internal dissent. But with the outcry from Capitol Hill, and US allies, pressure is only mounting on the White House to take a harder line.>> We're gonna have to see what happens.