The office of police, is a department of the common law, which bypassed the founding and the construction and the ratification of the Constitution; the common law being of the States but not of the federal government (for example, the States make the marriage laws, but the federal government does not).
When I was training to be a federal agent, our instructors were very particular about our understanding exactly from where, came our authority to be a federal agent, and to be an armed federal agent, and to make arrests, etc. At the time, in the early 1970's, we had to specifically state the Constitutional portions and the federal statutes that gave us the authority. I recall the day that I met a Secret Service Agent who had all that very neatly printed on a formal ID presentation binder; I recall, because I asked him what was his authority, and he smiled and produced that gem.
I also asked, because part of our instruction was the information about the authority of citizens; what authority they have --- it's quite a lot --- to ask questions about legal procedures, law procedures, due process stuff, and that included challenging (with respect) all government agents, as to, what is their authority, what is their business, and directing them to what in their actions is lawful versus what is not lawful.
Our instructors were real picky about getting it right and not leaving procedures open to successful failure analysis by opposing council, let alone the judge who would, in those days, be just too happy to rake a miserable law enforcement officer's performance over the coals.
For the record, here, law enforcement authority for a police officer whose office is of the State and / or local government (jurisdiction), comes from the State and comes from the local government but does not come from the federal government.
The federal government does not give power to State and local police offices, except under martial law, that is, except in the event of an emergency.
Call the above bill what they will, it is an act of martial law, because that part of the Constitution is wherefrom the authority for such a bill comes. The authority did not come from the Second Amendment nor from a Second Amendment right of either the States or individuals.
This is a very sad day to see the Congress and President sweep the Second Amendment out of the way of the federal government; and worse, it is a sad day to see citizens emotional attachment to guns, supercede our duty to keep government limited in power.
I sincerely hope that this un-Constitutional law, above, gets rescinded, struck down, immediately.
Other than feeling like a 2nd class citizen, the one thing that does give me hope is the old guys, the "retired law enforcement officers" know and understand what the Constitution is about.
They are the ones we can probably count on to assist us in getting our rights back as they know America is in trouble.