Its been done before, it has failed before and those that believed their State, City or County officials can over ride Federal Laws are either in jail or convicted felons that have lost their Second Amendment rights.

Supremacy Clause, look it up.

While you are at it look up the Kansas Second Amendment Protection Act and a couple guys named Shane Cox and Jeremy Kettler, that got their asses thrown under the bus my the Kansas Governor and State Legislators.

Give a man a fish and he eats for a day. Give a man a welfare check, a forty ounce malt liquor, a crack pipe, an Obama phone, free health insurance. and some Air Jordan's and he votes Democrat for a lifetime.