Stephanopoulos had not previously disclosed this financial contribution to ABC viewers, despite taking part in on-air discussions about the Clinton Foundation and its controversial relationships with foreign donors.

Stephanopoulos’s recent coverage of the topic has been challenged by critics who question his objectivity as a longtime aide to President Bill Clinton. The host’s April 26 interview with Clinton Cash author Peter Schweizer, for example, elicited partisan reactions after Stephanopoulos repeatedly pressed the Schweizer to acknowledge the lack of a “smoking gun” among the allegations in his book.