The bipartisan leaders of the U.S. Senate Intelligence Committee are demanding that the Trump administration disclose information about the murder of Saudi journalist Jamal Khashoggi.

In a letter addressed to acting Director of National Intelligence Richard Grenell, Senate Intelligence Committee Chairman Richard Burr, a Republican senator, and Democratic Sen. Mark Warner of Virginia requested an unclassified report on Khashoggi’s murder as required by a provision in the 2019 National Defense Authorization Act.

The letter, which was sent Monday, was first reported by The Washington Post.

Speaking to CNN, Burr said the letter was “one last effort to jog him”

Read more: US senators demand intel body release Khashoggi info