This assumes everyone acts in good faith.
A popular one these days is the "gun show 'loophole.'"
Rather than calling it "renegging on an explicitly-legislated compromise", it's a "loophole" that needs "closing."
It looks like a loophole, it could be in the textbook describing them. You have a law that establishes a rule, then creates a small exception that in effect opts out of the rule entirely. The people who want this provision eliminated don't know it was intended. That's pretty in the weeds of congress' internal negotiations
> You're assigning a single mind to a group of uncoordinated actors to create a hypocrisy that probably doesn't exist in any specific individual.
POSIWID
Now, it might be reasonable to remove this exemption, but the only way it's a "gunshow" loophole is that gun shows are a place where gun fans wanting to buy are going to meet gun fans wanting to sell.
Making it trivial for someone to do firearms checks seems like an easy thing that everyone should support, but alas no one in power seems to actually want such a thing.
If we negotiate and make a binding deal, I need to believe you will hold your end of the agreement.