They can pass an edict declaring the sun to rise in the west and set in the east.
Just because they pass an edict doesn't make it so.
Should traitors infiltrate the American government and announce an edict that attempts to repeal the 2nd amendment, I would guess that those traitors would find themselves "negotiating" with Patriots from 300 yards away.
Upto, and including a mile.
They're already there!!!!!!!!!!!!!!!!!!!