West Virginia became a separate state, as a result of Virginia declaring secession for the US.
In 1859 California passed the Pico Act, requesting that Southern California be split off as a separate state. The governor signed the bill, and 75 percent of voters in Southern California voted for it as a referendum. Congress needed to approve the split. Because of the secession of Southern States, Congress did not vote on it.
Bring back Californias Pico Act, and declare that since Congress failed to vote on Californias wishes in 1859, Congress will now take up the Pico Act.
In the process, declare that since California has voted to ignore Federal Immigration Laws, and declared that anyone cooperating in the implementation of Federal Immigration laws will be arrested, the Legislature of the state of California is now in rebellion.
Amend the original Pico Act and use the amended version to split California up into multiple states, to include the State of Jefferson in Northern California.
Obama had no problem declaring that Arizona could not, on its own, enforce Federal Immigration law, and Arizona was ruled in violation of the Supremacy Clause.
So isnt it true that California is in violation, since it refuses to enforce Federal Law, or cooperate with ICE in fulfilling their obligations under law?
Is not the state of California Legislature in rebellion?
Yes. the CA Legislature is in rebellion. Enforce the PICO ACT. Cut the state up into 4 or more pieces. Then do nothing to help them put the pieces together. Do not allow any of their immigrants into the rest of the USA. Disallow any noncitizens access to the USA. Isolate them.
Pio Pico, the last Mexican Governor of California, was of mixed-race background (part African ancestry). So if a black politician gets elected governor of California, he or she won't be the first black governor of the state.
According to the Wikipedia article, if Southern California had been split off, it would have been given the name Colorado (obviously before the name was applied to what is now the state of Colorado).