I have a feeling this primary will break heavily along racial and regional lines.
Assuming both Allred and Gutierrez both remain viable candidates, I'd expect Gutierrez to sweep basically all of the border, the panhandle, and generally most heavily Hispanic communities throughout the state. Allred I suspect will do better in the cities, particularly amongst white liberals and black voters. Also prolly gets a regional boost in Dallas.
That's a recipe for a 70-30ish Allred win in the primary. Hispanic voter turnout in Dem primaries is atrocious.
