It also happens to be a president who spearheaded that great adventure in nation-building which continues to serve as a catalyst for a broad swath of the epic plauge human rights abuses we're presently, and systematicaly, engaged in:

   https://en.wikipedia.org/wiki/CIA_activities_in_Afghanistan#Covert_action

including, in particular, the drone and other airstrikes he's referring to, and the continuing use of Guantanamo.