House Democrats on Friday sent a letter to the attorneys representing the estate of Jeffrey Epstein requesting a copy of the so-called “birthday book” that reportedly contains a crude poem and doodle from Donald Trump in celebration of the late sex offender’s 50th birthday.

In the letter, California congressmen Ro Khanna and Robert Garcia say the contents of the book may be “essential” to congressional oversight of the Trump administration’s handling of the Epstein controversy. In the letter, they ask for a “complete and unredacted” copy of the book by 10 August.

“The public deserves to know the truth and the survivors and their families deserve justice,” said Khanna, who criticized Congress for leaving Washington early without voting on his bipartisan bill to release the Epstein files.