01/05/2012 03:18 pm ET

Brian Williams Squirms When David Letterman Mocks John Boehner's Crying (VIDEO)

David Letterman made Brian Williams squirm on Wednesday night when he took aim at John Boehner's crying. That's because Williams is scheduled to interview Boehner later this week.

Williams smiled awkwardly at the camera after Letterman said that Boehner "will cry like a guy on drugs." The newsanchor admitted, "This makes me highly uncomfortable. I have to sit down with him this week for an interview."

"Well, pass this along," Letterman answered, prompting Williams to grimace. The late night host compared Boehner's crying to the time that he took a Valium and sobbed at a McDonald's commercial. He said that he was not suggesting that Boehner has a drug problem -- at which point Williams shook his head and warily braced himself for what was coming.

Letterman theorized that "there has been trauma in [Boehner's] life" and "he needs some sort of counseling." Williams joked that he would give Boehner the message.

He listed some of his own emotional moments on-air, which included reporting on September 11 and from Afghanistan when colleague Tim Russert died. Letterman objected, "[Boehner] can't get an elevator, he starts to sob. It's a different meal." Watch Williams' hilarious reaction in the clip above.