The British are known to take matters of heraldry seriously, and Mr. Trump’s American coat of arms belongs to another family. It was granted by British authorities in 1939 to Joseph Edward Davies, the third husband of Marjorie Merriweather Post, the socialite who built the Mar-a-Lago resort that is now Mr. Trump’s cherished getaway.The United States has no law governing the assumption of arms, and no authority for granting arms. I interpret the Second Amendment as recognizing the right of Americans to "keep and bear" heraldic arms as well as practical ones; after all, the heraldic arms symbolize what was originally a real right to keep and bear armor and weapons as a defender of the state. American citizens (but not British ones, anymore) continue to exercise that real underlying function. There is a very real sense in which we are much more properly entitled to heraldic arms than the British national whose countrymen have allowed his "right to bear arms" to become purely symbolic.
In the United States, the Trump Organization took Mr. Davies’s coat of arms for its own, making one small adjustment — replacing the word “Integritas,” Latin for integrity, with “Trump.”
On the other hand, this assumption does not adequately difference Trump's assumed arms from those from whom they were assumed. A change to the arms themselves (and not just the motto) should be made to make them distinct from those that were inherited (at least under British law) by some descendant of the man to whom they were granted. Under American law that isn't necessary, and I assume it will not be done, but it would be the respectful thing to do.