I don't see why people keep bringing up splitting up California. What would that achieve? It would impact the Senate, but have no impact on the presidency. Besides, Republicans could just split up Nebraska. It's pretty silly as a solution.
It would have an impact on the Presidency: CA currently has 55 EVs, 53 from House seats and 2 from Senators. A split CA would have 57 total EVs: 53 from House seats and 4 from Senators. This would also bring the total electoral college up from 538 to 540.
Yeah. If DC and PR were admitted and California split up into 5 states with almost equal population, and house seats were still apportioned at 435, then California would go from having 9.8% of the EV in 2020 to having 10.9%. If California split up into those 5 states but without DC and PR being admitted, then California would instead go to having 11.9% of the EVs (DC and PR would have 5 House votes, and by apportionment, those 5 states that used to be California would actually get all of the next 5 seats).
