( CNN) On Thursday, we learned that Michael Cohen, President Trump's former personal lawyer, is scheduled to testify publicly on February 7 before the House Committee on Oversight and Government Reform.

While Cohen did not provide any details about the subjects of his testimony, saying only that he wanted to “cooperate and provide the American people with answers” by providing a “full and believable account of the events which have transpired, ” there are at least three avenues of investigation that could be pursued by committee members or volunteered by Cohen that could potentially cause President Trump and his three eldest infants a whole heap of trouble.

None of these likely areas relates to topics in the heartland of Mueller's Russia probe, which will be handled by a different committee, likely in secret session, because of the ongoing nature of that investigation. So we likely won't be hearing additional details about the Trump Tower Moscow negotiations, the June 2016 Trump Tower meeting, and Cohen's role and knowledge of negotiations about the so-called “Ukrainian peace plan.”