Webb's work is wide ranging and she does not focus on Trump. There's an almost inexhaustible supply of malicious actors, and Trump is just one of them. IMHO she does not shirk stating factually any of their evil deeds, and that includes Trump. I don't want you to think she focuses on Trump, because if that's what you're seeking from Webb's work you'll be disappointed by it.
It's only ~1000 pages, so it's a cursory glance at many of these actors, across the times she covers, and in that field Trump is not particularly of note. He's just a bit player in a long list of them over many decades.