IS POTUS SETTING A TRAP BY PUSHING THE BUMP STOCK BAN?
He gets points from the left for ostensibly supporting restrictions.
This rule change involves a mandatory comment phase. Anyone can submit their feedback on the proposed rule change to ATF.
If the proposed rule is ambiguous or has other enforcement issues, that could be exposed in the comments phase and derail the rule.
POTUS can say I wanted this, but we all just learned that it's not so simple… can then transition that to some more practical reform like rewriting NFA, etc.