“In 1985, after fifteen great years, I was fired by ABC News,” Rivera wrote. “The official reason for my firing was a non-disclosed $200 donation to a family friend running in a non-partisan mayoral campaign in New Bedford Massachusetts.”

He went on to say that the “real reason” he was fired was a dispute with network head Roone Arldege over a spiked 20/20 story involving Marilyn Monroe and the Kennedys.

“The point is ABC treated my undisclosed $200 donation harshly because the network wanted me out for that unrelated reason,” Rivera continued. “Now ABC is bending over backward to minimize and forgive George Stephanopoulos’ $75,000 donation to the Clinton Foundation because he is central to the network’s recent success.”