Nunberg, who served on the Trump campaign just two months before being fired by the then candidate-Trump, claims he was subpoenaed by Mueller's office requesting documentation of communication between him and a handful of Trump's 2016 campaign staff, including Stone.
Nunberg said most of the documents related to his interactions with longtime Republican strategist Roger Stone and former White House chief strategist Steve Bannon. And he blamed Trump for the investigation into Russian Federation meddling, telling MSNBC that he was "responsible for this investigation. because he was so stupid".
John Dean, a White House counsel to President Richard Nixon during Watergate, tweeted Monday that Nunberg can't flatly refuse to comply with a grand jury subpoena.
Hours later, he told the NY Daily News that he's considering entering alcohol abuse treatment. "I think it would be really, really amusing if they wanted to arrest me because I don't want to spend 80 hours going over emails I had with Steve Bannon and Roger Stone", he said. I think it would be amusing if they arrested me.
The president "never did anything illegal or wrong around me", Nunberg told Bloomberg News in an interview Wednesday. He added, however, that based on questions investigators had asked him, "it's my impression that they may have something on him".
In the light of Nunberg's 180 flip, he said that the media treated him fairly, that he would comply with Mueller's email inquisition, and even offered an apology to Sarah Huckabee Sanders who he completely trashed.
Cuomo jokes about Cynthia Nixon's possible primary challenge
The actress has begun assembling staff, including two veterans of New York City Mayor Bill de Blasio's election team, NY1 said. But a spokeswoman would only say Nixon, who has been active in NY politics for years, continues to explore the possibility.
Meanwhile, he insisted he was not drunk during Monday's mainstream media marathon, during which he blasted President Trump and his aides. He said he "despises" outgoing White House communications director Hope Hicks.
He described Wiley as "very, very smart" and said she "made a compelling case to me". I assume he has sought the advice and counsel of his lawyer.
The appearances fueled speculation that Nunberg had been drinking, which Nunberg denied.
Most analysts agreed that the damage may have already been done. "But it is based on a conversation between Mr. Nunberg's attorney and my attorney that I believe he was asked about the circumstances of my leaving the campaign - that's always been a matter of some confusion". "His freewheeling responses to questions may result in more grief coming his way if it contradicts what he has said before or what the evidence is showing".
Nunberg said Wednesday the emails he found are mostly from Bannon and Stone.
The US intelligence community determined in January 2017 that Russian intelligence provided the hacked emails to WikiLeaks, which Assange denies.