Not that it's going to happen, anyway.
No, it won’t happen—it would require permission of Congress. And it looks to me as if the way they are proposing it, you would get three blue states and an extra 4 Dem senators. If it were Northern, Southern, and Central, you might get one red state.
If it were two Democratic states and one Republican state, it would give libs a two-Senator advantage. The best thing would be for CA to become an independent nation. Then perhaps if there’s any sane part of that new nation left, they’d be Republican and join the US as a conservative state.
Yeah, northern California would be just as red as Oregon and Washington.
You and others would be surprised. Take a look at a map of California red counties. 2/3 are red. Like most states, NY, IL, CT... the dense population centers are liberal.
Looks like SoCal would be red. (Middle) California and NorCal blue.
If Middle California was the coast from LA to San Francisco you might have Middle California blue with NorCal and SoCal red.