*Democrat Incumbent, [[Filemon Vela Jr.]] is retiring, and Hispanic Conservative, [[Mayra Flores]] is running. <ref>https://www.texastribune.org/2021/03/26/south-texas-elections-republicans-democrats/</ref> | *Democrat Incumbent, [[Filemon Vela Jr.]] is retiring, and Hispanic Conservative, [[Mayra Flores]] is running. <ref>https://www.texastribune.org/2021/03/26/south-texas-elections-republicans-democrats/</ref> |