Kristin Davis, the woman nicknamed the "Manhattan Madam," met with Special Counsel Robert Mueller's investigators voluntarily Wednesday.
CNN:
Investigators appear to be interested in her ties to longtime Donald Trump adviser Roger Stone, whom she has known for a decade. Sources said investigators expressed interest in having Davis testify before a grand jury -- the latest indication that prosecutors are still aiming to build a case against Stone.
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Davis worked with Stone on and off over the years and the two have a close personal relationship.
Davis once ran a high-end prostitution ring and went to jail as part of the scandal surrounding then-Democratic New York Gov. Eliot Spitzer.
Stone acted as Davis' campaign strategist in 2010 when she ran for New York governor on a platform that included legalizing marijuana and prostitution. Andrew Miller, another former Stone associate who has been subpoenaed to appear before the Mueller grand jury, served as Davis' campaign manager in her unsuccessful bid.
In late 2016, Davis joined Stone's payroll to assist in email blasts, media bookings and other clerical matters ...
Mueller's team has been looking into possible contact between Stone and WikiLeaks founder Julian Assange during the 2016 campaign, as well as Stone's finances.
Prosecutors appear to be delving into Stone's personal life as well. At least two witnesses were asked whether Stone was the father of Davis' son, according to people familiar with the questioning. Stone is the child's godfather.