I see your point but go look at Wickard, the "wheat case" where they used that exact argument and got away with it.Interstate commerce. It's a weak argument but they will argue that commerce within the state affects commerce between states. They will cite Wickard v Fillbern as proof."Gun control" is such a vague, catch-all phrase. I know how important bumper-sticker sloganeering is nowadays, but maybe we could get more specific on the individual issues within the overall gun control issue.
Let's start off with background checks. It seems to me that doing a background check on anyone who wants to purchase a gun - universal background checks - makes perfect sense and there is no reason why gun shows, for example, should have any kind of exemption.
A strong of Americans can see a value in this. Poll shows bipartisan support for expanding background checks -- Conservatives, if you disagree with that, what are your reasons?
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If you're talking about a federal law mandating background checks, then we first have to identify which of congress' enumerated powers would permit the enactment of such a law. Without the power to do so, enacting such a law would violate the constitution.
Why don't you tell us? You raised the point, so within the 18 clauses of Article I, Section 8 can we find one or more of those enumerated powers authorizing Congress to mandate background checks?
I don't see any power that would allow congress to mandate background checks for all sales.
Sure, they can claim anything they want. But they'd have to make the case the buying a weapon from one's neighbor is commerce among the states. Which it isn't. They might as well try to claim that a horse is a fish.