National Review Online’s Andrew McCarthy pens one of the best explanations I’ve seen refuting the Obama Administration’s argument that Arizona’s SB 1070 is preempted by federal law. A bit surprisingly, McCarthy’s column is in response to (and a bit in contention with) his colleague Heather McDonald.
McDonald wrote a column earlier today fretting about the hypothetical “preemption” consequences of an Arizona law enforcement official deciding to prosecute an illegal alien under SB 1070 after federal officials declined to prosecute under federal law. McDonald implied such a scenario would trigger a successful preemption claim (i.e. federal law trumping state law) because the actions of the state and federal officials would be in conflict.
Though their actions may be in conflict, argues McCarthy, that doesn’t mean the laws are in conflict. The distinction is crucial, but too often glossed over by pundits.
In a nutshell, the legislative branch makes a law and the executive branch has the discretion whether and how to enforce it. Since police officers and prosecutors are agents of the executive branch at both the state and federal level, they have discretion whether and how much to enforce a law passed by the legislature. (That’s why they can plea bargain cases and drop charges.)
So, if the federal layer of government decides not to enforce its law, but the state layer of government decides it will enforce its identical law, there is no legal conflict; only a different policy choice by each layer.
Thus, claiming that SB 1070 is unconstitutional because it is preempted by federal law is a non-starter since there is no legal conflict between the two. In fact, they are identical. Knowing the meanings behind the terms shows that the litigation surrounding SB 1070 is based on nothing more than a policy conflict between the U.S. Department of Justice and the State of Arizona over how to apply the same law.
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