Commentary
The major reason why America is so prosperous is the Interstate Commerce clause of U.S. Constitution. It established a vast, continent-wide free-trade zone. California imposes no tariffs on Fords made in Michigan. And Michigan imposes no tariffs on Teslas made in California.
There are some exceptions, but they have to be pretty good ones. When you drive into California from Arizona, you might get stopped at the agricultural checkpoints on the border. The reason is to make sure vermin aren’t infesting goods shipped into the Golden State.
California also imposes the nation’s strictest smog standards for cars. Again, that’s a health concern partly due to the Los Angeles Basin’s unique weather, which is a “marine inversion” in which hot air presses down on the basin, keeping smog from dissipating….