How many feel gun control is pointless unless it is federal?

One argument I hear, is that Chicago has mass number of shootings but has the strictest gun laws. How many people think it's because neighboring states have very loose gun laws? Do you think these people are going to WI or IN to by their firearms? If there is a complete federal gun ban, do you think guns will still find their way into a criminals hands.
How many feel gun control is pointless unless it is federal?
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