Ayers told Real Clear Politics that Obama is "absolutely" engaged in terrorist activity by using unmanned aerial vehicles, or drones, and "absolutely" should be tried for war crimes.
"Every president in this century should be put on trial. Every one of them goes into an office dripping with blood and then adds to it. And, yes, I think that these are war crimes. I think that they’re acts of terror."
Ayers added that he would give Obama a "failing grade" for his presidency but said, "I like him personally. I mean, he’s a really good guy."
During the 2008 campaign, conservatives frequently alleged that Obama’s ties to Ayers indicated his extreme ideology, though Obama maintained the two of them were never that close.
Notable deaths of 2014 [PHOTOS]