Man, dumb friends are just the worst!

"Jeff Redfern (born 12/31/82, appears 1/1/83) – Joanie and Rick's son and Alex's uncle. Jeff graduated from Walden (and stopped rooming with Zipper Harris), formerly worked for the Central Intelligence Agency with Havoc, and was in Afghanistan working for contractor Jack Overkill. Through social networking, Jeff established himself as the mysterious but fictional anti-Taliban fighter known as the "The Red Rascal" ("Sorkh Razil" in the local dialect). In early 2012, he received a seven-figure advance for his next two books, enabling him to purchase a 12-bedroom trophy mansion, but was evicted in October 2012 when he was unable to keep up the payments."
https://en.wikipedia.org/wiki/List_of_Doonesbury_characters

So Doonesbury has now decided that Trump supporters, seeing themselves as "taxpayers to whom NATO owes money" would pay for books about someone taking revenge on NATO.