They specify in the study that the participants were "non-expert poetry readers." I'd be interested to see the same experiment repeated with English professors, or even just English majors. Folks with a lot of experience reading poetry. With exposure to its history, its notable works, and its different styles.
Just have someone ask him what kind of 'nasty things he thinks democrats use the internet for.' He'll start rattling off things that are way too specific and definitely projection.
Maybe a really nice edition of a book you already love, from a luxury publisher like The Folio Society or Easton Press?