Disgraced evangelical leader Ted Haggard‘s former church disclosed Friday that the gay sex scandal that caused his downfall extends to a young male church volunteer who reported having a sexual relationship with Haggard – a revelation that comes as Haggard tries to repair his public image.

The disclosure comes as Haggard, 52, is about to give a series of high-profile interviews to promote the cable documentary about his time in exile. He is scheduled to appear on CNN’s Larry King Live on Thursday, the date of the documentary’s premiere, and already has taped “The Oprah Winfrey Show.” [video]