A top aide to former President Bill Clinton warned John Podesta, Hillary Clinton’s national campaign chairman, that a situation involving the Clinton Foundation’s AIDS nonprofit organization would “blow up” if “not handled appropriately.”

“I cannot stress enough that if this is not handled appropriately, it will blow up,” Tina Flournoy, chief of staff to former President Bill Clinton, told Podesta in an April 8, 2015, email with the subject line “CHAI,” which stands for the Clinton Health Access Initiative, the largest program of the Clinton Foundation.

It’s unclear what about CHAI concerned Flournoy, and Podesta didn’t respond to the email, a part of the latest batch of Podesta emails WikiLeaks released Tuesday. Flournoy sent the email to Podesta as he was trying to distract the public from recent reports of Hillary Clinton’s use of a private mail and server system while she was secretary of state.

Four days after Flournoy’s email to Podesta, Clinton officially announced her second Democratic presidential bid. Clinton lost the nomination to President Barack Obama in 2008. (RELATED: Clinton Camp Wanted Leak As ‘Decoy’)

The Boston Globe reported three weeks after Flournoy’s email that CHAI had never submitted information on any foreign donations to Department of State lawyers for review during Clinton’s tenure s chief U.S. diplomat from 2009 to 2013. (RELATED: Leaked Memo: Hillary Wants Clinton Foundation To Keep Accepting Foreign Donations)

The CHAI program had also distributed watered-down drugs to HIV/AIDS patients in third-world countries, according to a congressional report The Daily Caller News Foundation obtained. (RELATED: ‘Clinton Foundation AIDS Program Distributed ‘Watered-Down’ Drugs To Third World Countries)

TheDCNF also reported CHAI’s CEO, Ira Magaziner, asked former President Clinton to thank Morocco’s King Mohammed VI for “offering his plane” to a conference in Ethiopia.

“CHAI would like to request that President Clinton call Sheik Mohammed to thank him for offering his plane to the conference in Ethiopia,” Magaziner wrote in a Nov. 22, 2011, email obtained by Wikileaks.

Five FBI field offices are investigating the Clinton Foundation, with one week before the presidential election, TheDCNF previously reported.

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