Wrong. Please don't pretend you know what you're talking about.
I go to plenty of gun shows and I can tell you, without a doubt, there is NO background check for gun purchases made there.
Only pistols from FFL dealers.
There aren't even background checks required for rifles or shotguns in Ohio from brick and mortar stores.
Please don't pretend to know what you're talking about.
Federal background checks are
required by federal law for any firearm purchase (aside from
some black powder rifles) from a licensed dealer as part of their business. Just to be perfectly clear, I'll say it again. A federal (NICS) background check is
required by federal law on all firearms purchases from a licensed dealer in all states.
The closest thing to a "gun show loophole" (which is a retarded term, but we'll go with it) is the fact that by the very nature of the background check system (to perform a background check, you
must be a licensed dealer, among other things), private citizens without an FFL
cannot perform a background check before making a private sale, short of making the transfer through a third-party licensed dealer. Private, face to face sales are specifically allowed by law, within the bounds of the law (IE: not being a dealer).
Now, if you want to talk about the
enforcement of the already existing laws regarding guns and their sale, by all means feel free. We can talk about poor enforcement by all parties (including the BATFE and FBI, but especially dealers) until the end of time.
Sources for further reading:
https://www.atf.gov/file/100871/download
https://www.atf.gov/file/58676/download