Illinois law dean and professor Vikram David Amar contrasts Florida’s recent enactment of one of the strictest measures in the country to prohibit state and local entities from becoming “sanctuary” jurisdictions with California’s pro-sanctuary state laws. Amar explains this autonomy of states to enact such different laws with respect to federal laws as a product of the so-called anti-commandeering doctrine the Supreme Court has applied in three major cases over the past quarter century.