White House press secretary Sarah Huckabee Sanders responded Friday to Rep. Joaquin Castro Joaquin CastroPompeo accused of stumping for Trump ahead of election Florida Democrat asks FBI to investigate anti-Semitic, racist disinformation Hispanic Caucus members embark on 'virtual bus tour' with Biden campaign MORE's (D-Texas) accusation that Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE orchestrated the killing of Saudi U.S. based journalist Jamal Khashoggi.

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Sanders tweeted that the allegation was "an outrageous slanderous lie without a shred of proof," and that it is "reprehensible" for a member of Congress and news networks to "continue citing an article that used unnamed sources and was completely debunked."

.@JoaquinCastrotx’s allegation is an outrageous slanderous lie without a shred of proof, it’s reprehensible for a sitting Congressman and supposed “news” outlets to continue citing an article that used unnamed sources and was completely debunked.https://t.co/xf2Zhitg8B — Sarah Sanders (@PressSec) October 19, 2018

Earlier Friday on CNN, Castro accused Kushner, a senior White House adviser, of having "with U.S. intelligence, delivered a hit list, an enemies list, to the crown price, to [Mohammed bin Salman] MBS, in Saudi Arabia and that the prince may have acted on that.”

CNN host Poppy Harlow attempted to clarify Castro's source for the claim, but he countered that he had "seen reporting to that effect … That needs to be investigated.”

Castro later clarified his comments on Twitter.

“To be clear, I did not intend to accuse @jaredkushner of orchestrating anything,” Castro tweeted. “Based on press reporting, I’m asking for Congress to open an investigation of whether any US Intelligence was shared with Saudi Arabia that led to political persecution or killing of #Khashoggi.”

To be clear, I did not intend to accuse @jaredkushner of orchestrating anything. Based on press reporting, I’m asking for Congress to open an investigation of whether any US Intelligence was shared with Saudi Arabia that led to political persecution or killing of #Khashoggi (1/7) https://t.co/31vUT7bEUc — Joaquin Castro (@JoaquinCastrotx) October 19, 2018

Khashoggi has been missing for more than two weeks and was last seen entering the Saudi Consulate in Istanbul.

Kushner and Saudi Arabia’s Crown Price Mohammed bin Salman have a well-documented relationship, though no one before Castro accused Kushner of having any involvement in the death of Khashoggi.