Sid Jacobson, who was the editor of Harvey Comics, has written several books since Harvey quit publishing. The 9/11 Report with artist Ernie Colon (Richie Rich) is one. In 1963 he and artist Howie Post (Hot Stuff, Spooky) collaborated on this satire of the Kennedy administration, published just months before the assassination.
I'd like to thank David Miller for sharing yet another incredible piece of comics/graphics history with the scans he provided.
There's more information on Sid Jacobson here. Howard Post died in 2010 at age 83.