New emails from Hillary Clinton's private server suggest deep-pocketed donors to the Clinton Foundation enjoyed invitations to diplomatic events hosted by the State Department.

Huma Abedin, then Clinton's deputy chief of staff, coordinated with Doug Band, then a foundation executive, about which donors would attend the State Department events and even where those donors would sit upon arrival.

The records, obtained by Citizens United through a Freedom of Information Act lawsuit, are the latest indications that Clinton's State Department staff frequently worked with foundation employees in violation of at least the spirit of Clinton's pledge to keep her diplomatic and charitable networks separate.

In one exchange from January 2011, Band informed Abedin that Judith Rodin, whose Rockefeller Foundation has given up to $25 million to the Clinton Foundation, was attending a "China luncheon" at the State Department. Band then asked Abedin to secure a seat for Rodin at Vice President Joe Biden's table.

Abedin agreed to make arrangements with Biden's office.

In a different email chain from March 2012, State Department staff informed Band, Abedin and Dennis Cheng, another Clinton Foundation executive, that four donors would be attending an unidentified "state dinner."

Those donors — Haim Saban, Casey Wasserman, Gov. Terry McAuliffe and Fred Eychaner — remain supporters of Clinton's presidential campaign.

"Nice!" Abedin responded when learning that the four would attend the State Department event.

Yet another chain showed Abedin heeded Band's instruction to pass along a recommendation from a foundation donor, Gerardo Werthein, to an ambassador ahead of a diplomatic meeting.

Band told Abedin that Werthein was a "good friend" and "big supporter."

Abedin forwarded the recommendation, made on behalf of an unnamed rabbi ahead of his meeting with an ambassador, to other State Department officials and described Werthein as a "foundation supporter of President Clinton."

The latest emails raise fresh questions about the extent to which Clinton Foundation donors enjoyed special access at the State Department.

Clinton has weathered fierce criticism this month for avoiding reporters as controversy over her family's philanthropy simmers. Her husband has vowed to step down from the foundation board should Clinton win the presidency in November, but critics have claimed the move would do little to eliminate potential conflicts of interest.

ABC News first reported the emails.