So, there are some reasons I think this is a two-part fictional

.
In what parallel universe do people in bars turn to total strangers, and with no prior introduction let loose with a political slam?
In what parallel universe would a museum docent or exhibit person make a pungent derogatory (and accurate) political remark to a batch of spectators of varying political views?
The name of the museum in Apache Junction is the Superstition Mountain Museum.
Looking around the museum website, the only attraction where I think "SHRED" might encounter a burro might be the Elvis Chapel, which is used as a wedding venue.

I saw no mention of livestock on the site.
The event at the museum this weekend is, "The Magic of Mexican Artistry". Other than in pottery, weavings, carvings, and silver items, I don't think there were any burros there, other than in "SHRED's" imagination.