The widow of Jamal Khashoggi on Friday joined Democratic members of Congress in urging President Donald Trump to release the transcript of a phone conversation between the US leader and Saudi Crown Prince Mohammed bin Salman following the journalist’s 2018 kidnapping and gruesome murder by Saudi operatives.

Speaking outside the US Capitol in Washington, DC flanked by Democratic members of Congress including Reps. Eugene Vindman of Virginia and Jamie Raskin of Maryland, Hanan Elatr Khashoggi said she is seeking the lawmakers’ help “to get the contents of the conversation between President Trump and MBS to get the truth.”

Vindman urged the declassification and release of what he called a “highly disturbing” 2019 call between Trump and MBS—who US intelligence agencies say ordered Khashoggi’s murder—the contents of which the congressman claimed “would shock people if they knew what was said.”

At the time of the call, Vindman was serving as a lawyer on Trump’s National Security Council, where his duties included reviewing presidential communications with foreign leaders.

The Central Intelligence Agency concluded that MBS ordered Khashoggi’s murder. Saudi officials refuted the CIA’s findings. Trump also expressed skepticism at his own intelligence agency’s conclusion, which came as the US was selling or seeking to sell billions of dollars worth of arms to Saudi Arabia despite its rampant war crimes in Yemen.