That map doesn't make any sense at all. The logical two-state split is the straight line above Kern County. If you're going to divide the state that many times, the entire Bay Area should be kept together. I also don't see the logic in keeping Sacramento in a different state from Stockton and Modesto. I could see a serious proposal dividing the state at most three or four ways, but even those are a stretch.
^I stand by my post from a few months ago.
Even if this were to somehow pass (and I sincerely hope it gets destroyed), it wouldn't just require passage through Congress. Article IV of the Constitution would require consent of the California Legislature, as it involves creating new states from a current state. I don't see either as even remotely likely to happen.
IIRC, it's generally accepted that popular referendums meet the legislature requirement in various US constitutional provisions, provided that they are normally part of the legislative process. The requirement that legislatures approve things was intended to prevent state executives from acting unilaterally, not to prevent the application of popular sovereignty. That said, I too am dubious that Congress would approve this six-way split. While it doesn't affect the balance in the House or Senate, it definitely tilts the electoral college towards the GOP. Also Jefferson is rather small population-wise.
