"The false TRUMPET concealing madness will cause Byzantium to change its laws". Byzantium attracted immigrants in its day as America does now. Trump made anti-immigrants a centerpiece of his campaign. After the TRUMPET shows up the third world war will start and the end will come. Only a couple of weeks away until he has the power to do unspeakable harm. The loose cannon will not become a statesman on that day. He will continue bulling his way in the China Shop of America breaking everything with which he comes in contact.
Whether you subscribe to that or not at the very least the use of the word TRUMPET by Nostradamus 400 years ago is interesting. Is it not? So Trumpet causes WW3 and unleashes nuclear war and ushers in the end of days. Trump is totally oblivious to the harm he has already done because he is not thoughtful or contemplative nor does he plan ahead. He is shortsighted. He also doesn't care. If he cared he would comport himself in a way that would not endanger the US.