Odd little book; not quite science fiction, not quite political fiction. Awfully disturbing though, and highly readable. Interesting choice by the author to make Donald Trump and other real people the characters in the book. It makes it already a little dated (the role of Gen. Mattis, for example) but also very believable.

Mostly an excellent cautionary tale about how delicate the world is in the era of nuclear weapons, where just a small miscalculation could cause everything to go to hell.