The “supremacy clause” is dealt with in Mack/Printz, in which the U.S. Supreme Court stated once and for all, that the only thing “supreme” is the Constitution itself. Where by the powers, the Sheriff reigns supreme above the president.
Read the rest HERE
Thanks to Bill for passing along the link
*****
Of course it all depends if you've got a decent sheriff like Bill does, or a fucking politician like mine.