Rodriguez narrowly lost his election to Rep. Francisco "Quico" Canseco (R-Texas) in 2010, and is making a comeback bid in the Democratic-leaning San Antonio-based district. But he faces a tough primary against Pete GallegoPete Pena GallegoTexas Democrats smell blood in the water for 2018 ObamaCare repeal vote: 15 GOP lawmakers to watch Vulnerable Texas GOP lawmaker survives rematch MORE (D), who has outraised him and is preferred by a number of local Democrats.

The seat is a prime pickup opportunity for the Democrats — The Hill rates it "lean Democratic."