Trump had little time for in-depth briefings on Afghanistan’s history, its complicated politics or its seemingly endless civil war. Even a single page of bullet points on the country seemed to tax the president’s attention span on the subject, said senior White House officials.
“I call the president the two-minute man,” said one Trump confidant. “The president has patience for a half-page.”
Here are links to Part I, Part II, and Part III of "Trump Ain't No Think Tanker." Most think tank reports are at least several pages long, with many of them running into the dozens or even hundreds of pages.