The woman is likely referenced is Jeannie Rhee. A Politico story confirmed that Rhee previously represented the Clinton Foundation.
Robert Mueller and Leakin’ Lyin’ James Comey are Best Friends, just one of many Mueller Conflicts of Interest. And bye the way, wasn’t the woman in charge of prosecuting Jerome Corsi (who I do not know) in charge of “legal” at the corrupt Clinton Foundation? A total Witch Hunt...— Donald J. Trump (@realDonaldTrump) December 7, 2018
Rhee’s involvement brings an interesting angle to the Mueller investigation and will certainly spur questioning of the probe's objectionability.
“Rhee is a former partner at WilmerHale—the high-profile law firm where Mueller worked prior to taking on the special counsel role. Fox News reported earlier this year that Rhee had represented the Clinton Foundation in 2015 in a racketeering suit brought by conservative legal activist group Freedom Watch in 2015. Rhee also represented former Secretary of State Hillary Clinton in a lawsuit seeking access to her private emails.”