I decided to go ahead and follow Partly Cloudy Patriot with Assassination Vacation and it was well worth it. An information-packed travelogue-of-sorts detailing the events and people surrounding the first three presidential assassinations. It sounds like a morbid topic, but it is not written that way. The "story" is entertaining, random and even funny in places (Guiteau, the guy who assassinated Garfield, was umm...insane). Unlike Partly Cloudy Patriot, this book shies away from too much discussion of current politics except to point out, in the case of the McKinley assassination, how history tends to repeat itself in cases of imperialism and the spread of democracy.
If you are interested in American history, or just like random facts, this is definitely a book to add to your list. I learned all sorts of interesting tid-bits like the origin of the Oneida china company, the supposed but incorrect origin of the phrase "your name is mud," the history behind the creation of the Lincoln Monument, and so much more.
I give it 4.5 stars, simply because I think the last 3 or 4 pages could have been left out...but overall a very good read.