After a briefing by CIA Director Gina Haspel, US senators say they are even more convinced that Saudi Crown Prince Mohammed bin Salman was involved in the death of journalist Jamal Khashoggi.
"If he was in front of a jury he'd be convicted in 30 minutes," said Tennesse's Republican Senator Bob Corker.
Both Republicans and Democrats say they want to punish Saudi Arabia but are unsure precisely how.
They are putting pressure on the Trump administration to condemn the crown prince, who has become one of the president's most vocal allies.
Khashoggi is thought to have been murdered after entering the Saudi consulate in Istanbul in October. The Saudis have charged 11 people over the killing.