In a hacked email, ex-Clinton aide Doug Band claims Marc Mezvinsky traded on family ties to help his fund.

Chelsea Clinton's husband used his connections to the Clinton family and their charitable foundation to raise money for his hedge fund, according to an allegation by a longtime Clinton aide made public Sunday in hacked documents released by WikiLeaks.

Marc Mezvinsky extended invitations to a Clinton Foundation poker event to rich Clinton supporters he was courting as investors in his hedge fund, and he also relied on a billionaire foundation donor to raise money for the fund, according to the WikiLeaks documents. They also assert that he had his wife Chelsea Clinton make calls to set up meetings with potential investors who support her family's political and charitable endeavors.

The documents — a memo and an email — were written in late 2011 and early 2012, respectively, by ex-Clinton aide Doug Band. They were sent to family confidants including John Podesta, who is now serving as Hillary Clinton's presidential campaign chairman, and Cheryl Mills, who was Clinton's State Department chief of staff.

They were hacked from Podesta's Gmail account and made public Sunday in the latest batch of Podesta emails released by WikiLeaks.

At the time Band wrote them, Mezvinsky, who had been an investment banker at Goldman Sachs, was working with two partners to raise capital to launch a hedge fund of their own called Eaglevale Partners. The word among rich Clinton backers on Wall Street was that the family would look favorably on investments in Eaglevale, a major Manhattan investor told POLITICO.

That sentiment seems to be corroborated by the newly released WikiLeaks, which could provide fodder for critics, including Clinton's Republican rival Donald Trump, who argue that the Clintons have used their charitable foundation to try to enrich themselves.