It doesn't always take well known entity to defeat an incumbent. Most of the Democrats who got close in statewide races in Texas last weren't exactly big names.
I wouldn't be too worried if I were him. Beto and Castro both aren't running.
As stated above, Beto O’Rourke was not an A-List recruit when he announced for Senate in 2017, and wasn’t really taken seriously till spring 2018. We’ll see how MJ Hegar’s campaign takes off down the stretch.
