Dossier
Erin Henshaw is running for something in Leonida. The campaign signs between Ambrosia and the county line make that clear. What she's running for and whether she wins, nobody knows yet.
The signs appear in a scene showing a biker gang near Ambrosia. They are environmental detail, part of the world, not a character introduction. That is the entire official record on Erin Henshaw: road signs, a name, a political campaign somewhere in the Leonida interior.
Whether she shows up in person, whether her campaign ties into the story, what office she's actually after: none of that's landed yet. Leonida's political landscape is part of the world. Whether it becomes part of the plot is a different question.
Known Connections
Nobody's tied her to anyone yet.