If you want to know who represents the arts, I would suggest looking at the list of Congresspeople ordered by number of Fractured Atlas fiscal sponsorship projects.
Unsurprising takeaways is that the top five Representatives with the most projects in their district are Democrats from NYC. The top 10 adds San Francisco, and Austin, TX. It takes you fifteen to get to a Republican (Staten Island). By the time you start reaching things like suburbs or less name-brand cities (Marietta, GA, for example), you're talking about under fifty Fractured Atlas projects... you're in the long tail.