She runs a construction company in Atascosa County and is now facing criminal charges for allegedly paying people to harvest votes in the same district she's campaigning to represent.
Castellano is a third-generation South Texan and president of AZTECA Designs & Construction who ran for this same House seat in 2024 and lost to Don McLaughlin. She was indicted in 2025 on vote-harvesting charges tied to a Frio County investigation, and those charges are still active as she runs again in 2026. Her platform centers on public schools, teacher pay, and expanding Medicaid to help rural hospitals stay open.
Castellano’s take on Texas values
She campaigns against private-school voucher funding and for raising teacher pay and school funding, saying she'll 'reject vouchers that undermine public education.' [cecilia4texas.com]