What is the supreme law of the land?

The Headline: Ariz. Border Sheriff: Obama's Got His Hands Wrapped Around Our Throat' By Terence P. Jeffrey  Sheriff Larry Dever of Cochise County, Ariz. told CNSNews.com that President Barack Obama has "got his hands wrapped around our throat" as his administration sues the state of Arizona for trying to enforce the immigration laws that the federal government itself will not enforce.   

The Law: The Naturalization Clause Art. I, 8, cl. 4 of the Constitution empowers Congress to "establish a uniform Rule of Naturalization." Because the power to regulate immigration is a function of the federal government, the authority of state governments to act in immigration-related matters is limited.  Determinations that a state law or local ordinance is preempted by federal law originates in the Constitution's "Supremacy Clause" (Art. VI, cl.2).    

The Thinking: The supreme law of the land is the bane of the existence of states' rights activists whom seek to change immigration laws in their states or communities.  Within this supreme law of the land we find that immigration laws are the exclusive right of the federal government.     Only the federal government can determine who is and who can be a citizen.  Is it time to abolish this living breathing supreme law?   No need to, after all it has served us well for over two hundred years.   If you don't like something about it you can seek to change it through the amendment process.  There have been 27 amendments to the supreme law of the land since its inception.  Of course, amending the supreme law of the land to allow states to enforce their own immigration laws would not be a positive step towards forming "a more perfect union".  Imagine, if you will, having to pass through a border checkpoint every time you entered another state.   

The Answer:    The Constitution