Hillary beat Trump in CA-25 2016 50% to 43%.
Also due to ballot harvesting, which is legal in California. There are no ‘big cities’ in CA-25. And it had been a Conservative stronghold in LA County for a couple of decades.
Our problem is figuring out how the Left is going to cheat in November. What new cheating ploy will there be, aside from an all mail-in vote? In 2018 here in Maricopa County, our Registrar counted ballots where the signatures weren’t even remotely like the ones on file. His ‘counting of the votes’ was never challenged. THAT is why they keep cheating, no one ever holds them accountable.