This cartoon by Brian McFadden is mostly on target:
But the problem with agriculture is not so much the demands of the east to eat but of the power of the ag industry in California. California politicians are not going to be shy about annoying the rest of the country (might get them more votes), but they are shy about confronting big Ag in the state. Otherwise, the reaction to the water problem would definitely involve restrictions on the farmers.
Anyhow, fun cartoon that is 95% of the way there instead of the usual 110%.