I have to say that starting this novel, I recognized the name McKinley, knew that he came between Cleveland and Roosevelt, but other than that, not much else. I was pleasantly surprised at the first half of this book and the things that McKinley has accomplished. I was equally surprised at how his inaction (purposefully done) as President is what shaped most of his presidency. His tactic of waiting out public opinion is probably what made him popular. He didn't do what he wanted so much as he waited until the public was clamoring for something and then gave it to them, good or bad.
There are issues that the book did not explain, such as how the annexation of Hawaii was Manifest Destiny, but when trying to liberate Cuba from Spanish control (and ending up fighting the Spanish in the Philippines) turned into Carnegie calling McKinley an "Imperialist" and threatening to turn America into an empire. So, Hawaii yes, Cuba or the Philippines, no. But no explanation. Also, in trans-world affairs, how a border dispute between American and Canada at the discovery of gold led to negotiations with England for the Panama canal. While the canal resolution apparently solved the Alaska/Canada border dispute, the book does not explain how the two events are even remotely related or why the canal solved the issue.
Finally, I think it's most interesting that McKinley got credit for doing very little, and letting others do most of the work under his name. I was glad to see that the people who did the work started to get the public notoriety and praise they deserved. So much so that one of them, a fellow Republican, probably wouldn't beaten McKinley in the Republican primaries for his re-election of McKinley hadn't tapped him to be his VP (that being Teddy Roosevelt). What saddens me is that McKinley was warned several times over about appearing at an expo in Buffalo, that crowd control would be dangerous, that security would be light, and his response was that no one would ever want to hurt him. Well, sure enough, an anarchist, with absolutely nothing against McKinley at all, shoots him. I'm amazed a bullet was stopped by a button. I'm amazed that the expo had new "x-ray technology for medical use" on site, but when doctors could not find the second bullet in McKinley's body, they didn't bother to try it and see if they could find it (they probably would have), also, that after not finding the bullet, they expressed concerns about infection, but did nothing to prevent infection, and that's what ultimate took the President's life a week later...and only 6 months into his second term, which he won mostly on name of having Teddy Roosevelt on his ticket with him.
This turned out to be a far more enlightening biography than I expected, but it is very slow in the last 75 pages (picks right back up with the re-election talk, about 10 pages to go before the end, though). While the book may not have been a riveting page-turner, the President is well worth knowing about.