(CNN)Kristin Davis, the woman famously known as the "Manhattan Madam," met with special counsel Robert Mueller's team for a voluntary interview on Wednesday, according to four sources familiar with the situation.
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.
A
lawyer for Davis declined to comment. A spokesperson for the
special counsel also declined to comment.
Prior
to publication of this story, Stone and his lawyer declined to
comment. After publication, Stone told CNN in a statement,
"Kristin Davis is a long time friend and associate of mine. I am
the Godfather to her 2 year-old son. She knows nothing about
Russian Collusion, WikiLeaks collaboration or any other
impropriety related to the 2016 election which I thought was the
subject of this probe. I understand she appeared voluntarily. I
am highly confident she will testify truthfully if called upon
to do so."
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. Davis was not involved in the specific prostitution
service Spitzer used that led to his resignation in 2008.
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, according
to a source familiar with the situation.
It's
not clear what the focus of Davis' voluntary interview was or
how she may fit into the broader Mueller investigation about
Russian interference in the 2016 election and potential
collusion between Trump associates and Russians.
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.
The
questions appear to have irked Stone, at least on Instagram.
He
posted a photo earlier this week of
Davis and her child with the caption, "Why do FBI agents
dispatched by Robert Mueller keep asking a number of my
current and former associates if I am this baby's father ?
What does this have to do with Russian Collusion and the 2016
election #witchhunt #thugtactic#mueller #gestapo #partisan."