For weeks, the steady drip of e-mails stolen from the personal e-mail account of Clinton campaign chairman John Podesta has provided a rare window into the inner workings of Clintonworld and the Democratic nominee’s insular (and sometimes catty) presidential campaign. The latest cache of hacked e-mails, released on Monday by the activist online publishing platform WikiLeaks, reveals Podesta’s curiously cozy—and lucrative—relationship with an influential Clinton donor, Herb Sandler. (The Clinton campaign has accused Russia of orchestrating the cyberattack on Podesta, as part of a larger effort to help elect Donald Trump.)

The e-mail exchanges reveal that Podesta, who isn’t paid by the Clinton campaign, is on the payroll of the Sandler Foundation to the tune of $7,000 per month, Politico reports. Podesta, who previously served as Chief of Staff to both presidents Bill Clinton and Barack Obama, signed on as a consultant for the Sandler Foundation in February 2015, as he was helping lay the groundwork for Clinton’s imminent presidential run. (Neither Podesta nor the Clinton campaign commented on the contract to Politico.)

While it is not at all unusual for accomplished political operatives like Podesta, a veteran White House staffer and longtime Beltway operative, to secure lucrative consulting jobs, it is noteworthy that he is being paid while working full-time for the Clinton campaign. According to Federal Election Commission filings cited by Politico, the Sandler family is also a top Clinton donor, having given a total of $4.4 million to the former secretary of state’s campaign, via a number of Democratic political action committees. Priorities USA, a pro-Clinton super-PAC, received $3 million.

Sandler, for his part, dismissed the notion that his relationship with Podesta should raise any red flags. He told Politico that the campaign chairman “knows that he doesn’t get bullshit from me. He knows I have no hidden agenda. He knows that my values are similar to his and that we care about people and not the billionaires, even though I ended up by some crazy thing to be one,” and asserted that he would “pay a lot more” for Podesta’s advice than the current four-digit monthly sum. “I have never asked for anything of any political person—zero requests ever,” added Sandler, who made his fortune in the mortgage and loan business. “If they’re responsive, it’s because they regard me as thoughtful, and a major contributor to Democratic causes.”

It is true that Sandler’s political donations are not limited to groups benefiting Hillary Clinton. Citing tax filings, Politico reports that the Sandler Foundation has donated more than $37 million to progressive think tank Center for American Progress—through which he reportedly met Podesta. Sandler also reportedly agreed to donate a hefty sum to the Washington Center for Equitable Growth, a research organization founded by CAP in 2013. According to the leaked e-mails, the businessman said he would give $3 million to the institution every year, for its first three years in existence.