"I don't comment on something that's a dead issue. I gave all comments to the staff. It's a dead issue," the POTUS told NBC News, and declined to discuss the issue further.

What was the 'birthday note'

On Monday, Democrats on the House Oversight Committee unveiled an image of the birthday note allegedly written by Trump, after obtaining documents and communications from Jeffrey Epstein's estate.

"HERE IT IS: We got Trump's birthday note to Jeffrey Epstein that the President said doesn't exist. Trump talks about a "wonderful secret" the two of them shared. What is he hiding? Release the files!" the X post read.

On Monday, the White House, however, denied that the signature on the birthday message belongs to Trump.

"As I have said all along, it's very clear President Trump did not draw this picture, and he did not sign it. President Trump's legal team will continue to aggressively pursue litigation," White House press secretary Karoline Leavitt wrote on X.

Inside the 'lewd' letter

Trump's alleged 'birthday note' to Epstein was written inside a purported outline of a woman's body.

The Epstein letter says, "Enigmas never age, have you noticed that?" and ends with "A pal is a wonderful thing. Happy Birthday-and may every day be another wonderful secret."

Trump sues WSJ

Donald Trump denied writing the letter or drawing the picture, calling it "a fake thing."

In July, The Wall Street Journal published initial details about the alleged birthday note. At the time, Trump denied involvement, stating, "These are not my words, not the way I talk. Also, I don't draw pictures."

The US president also filed a lawsuit against the Journal's reporters, Journal publisher Dow Jones, parent company News Corp and executives, alleging defamation and saying the letter was "non-existent."