A set of emails made public Tuesday from Hillary Clinton’s top aides at the State Department show Clinton Foundation executives and donors frequently consulted with the secretary of state’s office, including by asking former President Bill Clinton to conduct “private” diplomatic discussions on a foundation-sponsored trip to Rwanda.

In the email, Johnnie Carson, assistant secretary for African affairs, said he and “the ambassador believe that it would be useful for President Clinton in his private conversations with [Rwandan President Paul] Kagame to quietly encourage him to defuse tensions with the [Democratic Republic of the Congo].” Much of the rest of the July 2012 email was classified by the State Department before it was released to Citizens United through the Freedom of Information Act.