The proposed map appears to target Democrats Greg Casar and Henry Cuellar, both of whose districts include parts of San Antonio.

Under the new map, Republicans are eyeing earning 30 seats in Congress — from their current 25 — partly by moving Cuellar and Gonzalez into districts Trump won by double digits. The proposal would also remove three Democratic-held seats in Houston, San Antonio and Dallas and create new districts that are potential Republican pickup opportunities.