Sources confirmed to Fox News on Thursday that Pecker struck an immunity deal with federal prosecutors in NY in exchange for information in the investigation into hush-money payments by Cohen.
Weisselberg, 70, began working for the Trump Organization as an accountant in the 1970s, when President Donald Trump's father Fred ran the company. Legal experts told The Times that NY prosecutors could now question Mr Weisselberg about any topic and he would be required to answer under the immunity deal or risk perjury charges. If all his people are out under pressure and tell the secrets they know, it's awful for him.
It was a bruising week for Trump, with a trio of men who are intimately familiar with his secrets and business dealings now cooperating with prosecutors. After the Republican billionaire was elected president, Trump handed control of his business interests to his adult sons and Weisselberg.
On the recording, Cohen is heard saying, "I've spoken to Allen Weisselberg about how to set the whole thing up".
In a tweet Saturday, the former New York City mayor noted we're just over 60 days from the general election and called for Mueller to release his report if he wants to show he's not partisan. If there is more impropriety to be uncovered in that arena of the president's life beyond Cohen's payments to Stormy Daniels and Karen McDougal - and at this point, it would be surprising if there weren't - he would likely be authorities' top choice to tell them about it. Trump has denied there was an affair.
Asked about what he thought of a last-minute order by Mr Trump to catch a flight to Iowa to tend to some business during the campaign, Mr Weisselberg said in one deposition that "it doesn't matter what I thought".
While Pecker is cooperating with federal prosecutors now, American Media previously declined to participate in congressional inquiries.
Cohen pleaded guilty to tax and campaign finance violations on Tuesday. He also said he was only aware of the payments "later on".
The White House official insisted that West Wing staffers continue to keep their heads down and do their jobs.
Asked if he would fire Mueller if that were to happen, Trump responded, "I can't, I can't answer that question because I don't think it's going to happen".
In a recent interview with Fox News, Donald Trump himself acknowledged the possibility of impeachment, stating he wasn't sure if congress could impeach someone who had done "a great job".
As the negative news mounted throughout the past week, allies also expressed frustration with the lack of a coordinated pushback effort.
NY state laws could also come into play.