I still hope for a Fiorina upset. Boxer is one of the worst senators the Senate has seen. The Central Valley is going to give Fiorina a landslide margin. The polls might be underestimating Republican turnout since California hasn't had a competitive senate election in about 12 years.
California elections aren't decided in the central valley. How is Fiorina doing in suburban LA county? That is what will decide this election.
She is a lock in Orange County and the Inland Empire. San Diego is probably leaning strongly towards her, as are Ventura and San Luis Obispo. It will actually probably come down to whether or not she can get around 40% in suburban parts of the Bay Area that puts her over the top.