A Personal Attack
This is simplay a personal attack. That's it.
And that does nothing to hurt Trump. Comey felt this way about him BEFORE Trump even got elected.
Comey's just trying to sell a book.
WHAT would be a "bombshell"? If he told us something concrete about how Trump broke the law..some new "fact" or "thing".
Nothing. He hates Trump and hated Trump before he won the election..that's all he's sharing.