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> No Bill of Attainder or ex post facto Law shall be passed.
Welp, 18 U.S.C. 922(g)(9)otherwise known as the Lautenberg Amendment reads:
(9) has been convicted in any court of a misdemeanor crime of domestic violence.

"Any court", even if it occurred before the act was passed into "law". Ex. Post. Facto. 

We need to challenge this.