"There's reason to be quite skeptical of these allegations," said Melanie Sloan, executive director of CREW. "Mr. Williams claims to have known about the Senator's conduct since as early as 2008 yet didn't come forward for four years until right before Menendez's reelection."
"In addition, despite efforts by Crew, news organizations and the FBI to speak with Mr. Williams either by phone or in person, he's refused to do that for over eight months," said Sloan. She said CREW was unable to determine if the underage woman referenced by Menendez was "a prostitute, underage, or even real."
"The timing, combined with his insistence on remaining on communication only through email, seriously undermines the credibility of the allegations," said Sloan.
Earlier this week, dozens of emails between "Peter Williams" and CREW, ABC News and the FBI were published on a website.
Despite extensive efforts by ABC News to meet with Williams, speak with him on the phone, or verify his identity, Williams refused to come forward.