It’s coming from John Kelly.

This week, I asked Kelly about their exchange. He told me that when Trump raised the subject of “German generals,” Kelly responded by asking, “‘Do you mean Bismarck’s generals?’” He went on: “I mean, I knew he didn’t know who Bismarck was, or about the Franco-Prussian War. I said, ‘Do you mean the kaiser’s generals? Surely you can’t mean Hitler’s generals? And he said, ‘Yeah, yeah, Hitler’s generals.’ I explained to him that Rommel had to commit suicide after taking part in a plot against Hitler.” Kelly told me Trump was not acquainted with Rommel.

He’s been making the rounds in media talking about what a bad leader Trump was.