Aleksandar Mitreski, a security and defence analyst, said Saudi Arabia cannot control the global narrative but can try to alleviate the most damaging fallout.
Trump's language was strikingly similar to the language he has used to describe Russian President Vladimir Putin's denials of election meddling.
Trump added he was "immediately" sending Secretary of State Mike Pompeo to Riyadh "to meet with the king" for talks on the crisis.
Saudi and Turkish investigators have been seen entering the Saudi consulate where Mr Khashoggi was last seen.
Turkish officials have reportedly shared with Washington contents of video and audio recordings that allegedly contain evidence supporting claims that Khashoggi was murdered by the Saudi government.
The Saudis are preparing a report that will acknowledge that Saudi journalist Jamal Khashoggi's death was the result of an interrogation that went wrong, one that was meant to lead to his abduction from Turkey, according to two sources.
As western companies began to distance themselves from the oil-rich Gulf nation which is seeking outside investment to diversify its economy, the king also Sunday discussed the scandal with Turkish President Recep Tayyip Erdogan.
Saudis reject threats amid concern over journalist missing in Turkey
Trump added he was "immediately" sending Secretary of State Mike Pompeo to Riyadh "to meet with the king" for talks on the crisis. Turkish officials say they believe he was murdered there and his body removed , in a case that has provoked an worldwide outcry.
Meghan Markle is pregnant
Doria travelled with Meghan in her auto to the wedding after flying in a few days before to meet the Royal Family . United Kingdom betting agency puts Diana, Arthur and Alice as front runners for the new royal baby name.
Ariana Grande and Pete Davidson have reportedly called it quits
The pair was never shy about sharing affection for one another publicly, especially on social media. The reason is still unclear since neither Ariana nor Pete have commented on the breakup.
Asked when the public prosecutor could make an announcement, the official said: "He was instructed to work quickly".
"Turkey has not been our ally lately", Lieberman said.
They were published shortly after a report in the Washington Post - for whom Mr Khashoggi worked - cited U.S. government officials who believed that audio recordings proved he had been murdered while visiting the Saudi embassy.
Turkish crime scene investigators dressed in coveralls and gloves entered the Saudi Consulate in Istanbul on Monday, almost two weeks after the disappearance and alleged slaying of Saudi writer Jamal Khashoggi there. On October 2, Khashoggi went to the Saudi consulate with his fiancée to get documents proving his divorce.
"The Saudi-led war in Yemen has become the world's largest humanitarian disaster".
Turkey rejected that offer.
Turkish officers wanted to take in solvents to detect traces of blood, while the Saudis wanted a more limited search.
Washington Post columnist Jamal Khashoggi, a prominent Saudi government critic, entered the Saudi Consulate in Istanbul on October 2 and then disappeared. "We're going to get to the bottom of it, and there will be severe punishment". He is a U.S. resident.
In the past days, a slew of business leaders announced they would not attend the second Future Investment Initiative.
The head of JP Morgan, Jamie Dimon, is one of the latest high-profile executives to pull out.
Other executives such as Ford Motor Chairman Bill Ford and Uber Chief Executive Dara Khosrowshahi also won't attend the conference, according to the Wall Street Journal.