I hate to answer my own question, but I found the Clinton apology for slavery. He apologized while in Uganda. Here is a link to a Thomas Sowell article about the apology:
Reason vs Racism.
Good. That To Do is checked off.
"Demonstrators said blacks deserved "long overdue" reparations, noting compensation won by Jews in the aftermath of the Holocaust and Japanese-Americans for their internment by the United States in camps during World War II."
The Jews and the Japanese-Americans of which they speak were the actual benefactors of "mistreatment", not their ancestors.